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What is the most triangles you can make from a capital “H” and 3 straight lines?


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21












$begingroup$


So start with an upper case H, and then draw $3$ straight lines. What is the greatest number of closed triangles that you can form? For example:



an example



Note that triangles inside of triangles only count once (e.g. 5 & 6 in the image don't count):
however, triangles inside of other triangles do not count



And you aren't allowed to extend the cross line of the H (e.g. 5 in the image doesn't count)
Example of what's not allowed










share|improve this question











$endgroup$

















    21












    $begingroup$


    So start with an upper case H, and then draw $3$ straight lines. What is the greatest number of closed triangles that you can form? For example:



    an example



    Note that triangles inside of triangles only count once (e.g. 5 & 6 in the image don't count):
    however, triangles inside of other triangles do not count



    And you aren't allowed to extend the cross line of the H (e.g. 5 in the image doesn't count)
    Example of what's not allowed










    share|improve this question











    $endgroup$















      21












      21








      21


      4



      $begingroup$


      So start with an upper case H, and then draw $3$ straight lines. What is the greatest number of closed triangles that you can form? For example:



      an example



      Note that triangles inside of triangles only count once (e.g. 5 & 6 in the image don't count):
      however, triangles inside of other triangles do not count



      And you aren't allowed to extend the cross line of the H (e.g. 5 in the image doesn't count)
      Example of what's not allowed










      share|improve this question











      $endgroup$




      So start with an upper case H, and then draw $3$ straight lines. What is the greatest number of closed triangles that you can form? For example:



      an example



      Note that triangles inside of triangles only count once (e.g. 5 & 6 in the image don't count):
      however, triangles inside of other triangles do not count



      And you aren't allowed to extend the cross line of the H (e.g. 5 in the image doesn't count)
      Example of what's not allowed







      mathematics geometry triangle






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 4 hours ago









      Hugh

      2,28511126




      2,28511126










      asked yesterday









      CurtisCurtis

      1086




      1086






















          4 Answers
          4






          active

          oldest

          votes


















          20












          $begingroup$

          Here's a solution for 7 triangles:




          enter image description here







          share|improve this answer











          $endgroup$













          • $begingroup$
            You can make $8$ from that picture. See if you can figure it out ;)
            $endgroup$
            – user477343
            12 hours ago






          • 8




            $begingroup$
            No, you cannot.
            $endgroup$
            – Bass
            11 hours ago












          • $begingroup$
            Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
            $endgroup$
            – btw
            9 hours ago






          • 2




            $begingroup$
            @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
            $endgroup$
            – Bass
            8 hours ago



















          4












          $begingroup$

          Here's one with six triangles (7 if you count triangles outside of triangles, which you don't):




          H with lines







          share|improve this answer









          $endgroup$









          • 1




            $begingroup$
            I suspect that this is the highest that can be gotten, but I'm not sure.
            $endgroup$
            – Brandon_J
            yesterday










          • $begingroup$
            My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
            $endgroup$
            – Curtis
            21 hours ago






          • 1




            $begingroup$
            If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
            $endgroup$
            – tyobrien
            10 hours ago






          • 3




            $begingroup$
            @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
            $endgroup$
            – Bass
            10 hours ago










          • $begingroup$
            Oh yes that would be correct
            $endgroup$
            – tyobrien
            10 hours ago



















          1












          $begingroup$

          Does this count as 8 triangles?




          enter image description here







          share|improve this answer











          $endgroup$













          • $begingroup$
            The regions must be triangles.
            $endgroup$
            – noedne
            17 hours ago






          • 2




            $begingroup$
            The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
            $endgroup$
            – Bass
            17 hours ago












          • $begingroup$
            Oh ok! Thank you
            $endgroup$
            – K Sharing
            13 hours ago










          • $begingroup$
            @Bass Precisely!
            $endgroup$
            – Curtis
            12 hours ago










          • $begingroup$
            @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
            $endgroup$
            – Monty Harder
            11 hours ago



















          -1












          $begingroup$

          Please have a look at this pic using 3 red lines on letter H.
          I count 10 triangles



          total triangles 9






          share|improve this answer








          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$









          • 9




            $begingroup$
            Overlapping triangles are not counted, so there are only 5 in your arrangement.
            $endgroup$
            – Jaap Scherphuis
            12 hours ago










          • $begingroup$
            Yeah, I agree with @JaapScherphuis
            $endgroup$
            – Brandon_J
            7 hours ago










          • $begingroup$
            @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
            $endgroup$
            – PerpetualJ
            4 hours ago










          • $begingroup$
            @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
            $endgroup$
            – Yout Ried
            2 hours ago













          Your Answer





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          4 Answers
          4






          active

          oldest

          votes








          4 Answers
          4






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          20












          $begingroup$

          Here's a solution for 7 triangles:




          enter image description here







          share|improve this answer











          $endgroup$













          • $begingroup$
            You can make $8$ from that picture. See if you can figure it out ;)
            $endgroup$
            – user477343
            12 hours ago






          • 8




            $begingroup$
            No, you cannot.
            $endgroup$
            – Bass
            11 hours ago












          • $begingroup$
            Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
            $endgroup$
            – btw
            9 hours ago






          • 2




            $begingroup$
            @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
            $endgroup$
            – Bass
            8 hours ago
















          20












          $begingroup$

          Here's a solution for 7 triangles:




          enter image description here







          share|improve this answer











          $endgroup$













          • $begingroup$
            You can make $8$ from that picture. See if you can figure it out ;)
            $endgroup$
            – user477343
            12 hours ago






          • 8




            $begingroup$
            No, you cannot.
            $endgroup$
            – Bass
            11 hours ago












          • $begingroup$
            Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
            $endgroup$
            – btw
            9 hours ago






          • 2




            $begingroup$
            @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
            $endgroup$
            – Bass
            8 hours ago














          20












          20








          20





          $begingroup$

          Here's a solution for 7 triangles:




          enter image description here







          share|improve this answer











          $endgroup$



          Here's a solution for 7 triangles:




          enter image description here








          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 12 hours ago









          Ahmed Ashour

          964312




          964312










          answered 17 hours ago









          BassBass

          30.3k472186




          30.3k472186












          • $begingroup$
            You can make $8$ from that picture. See if you can figure it out ;)
            $endgroup$
            – user477343
            12 hours ago






          • 8




            $begingroup$
            No, you cannot.
            $endgroup$
            – Bass
            11 hours ago












          • $begingroup$
            Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
            $endgroup$
            – btw
            9 hours ago






          • 2




            $begingroup$
            @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
            $endgroup$
            – Bass
            8 hours ago


















          • $begingroup$
            You can make $8$ from that picture. See if you can figure it out ;)
            $endgroup$
            – user477343
            12 hours ago






          • 8




            $begingroup$
            No, you cannot.
            $endgroup$
            – Bass
            11 hours ago












          • $begingroup$
            Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
            $endgroup$
            – btw
            9 hours ago






          • 2




            $begingroup$
            @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
            $endgroup$
            – Bass
            8 hours ago
















          $begingroup$
          You can make $8$ from that picture. See if you can figure it out ;)
          $endgroup$
          – user477343
          12 hours ago




          $begingroup$
          You can make $8$ from that picture. See if you can figure it out ;)
          $endgroup$
          – user477343
          12 hours ago




          8




          8




          $begingroup$
          No, you cannot.
          $endgroup$
          – Bass
          11 hours ago






          $begingroup$
          No, you cannot.
          $endgroup$
          – Bass
          11 hours ago














          $begingroup$
          Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
          $endgroup$
          – btw
          9 hours ago




          $begingroup$
          Decrease the angle between three red lines and rotate them ccw slightly. Now two rightmost red lines in the original form will make another triangle with the right pillar of H. According to OP only extending the cross line is not allowed.
          $endgroup$
          – btw
          9 hours ago




          2




          2




          $begingroup$
          @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
          $endgroup$
          – Bass
          8 hours ago




          $begingroup$
          @btw please draw a picture. The two rightmost red lines (the ones that go through the right edge of the picture) already make a triangle with the right pillar of the H, and hopefully you aren't suggesting that three straight lines could somehow make more than one triangle.
          $endgroup$
          – Bass
          8 hours ago











          4












          $begingroup$

          Here's one with six triangles (7 if you count triangles outside of triangles, which you don't):




          H with lines







          share|improve this answer









          $endgroup$









          • 1




            $begingroup$
            I suspect that this is the highest that can be gotten, but I'm not sure.
            $endgroup$
            – Brandon_J
            yesterday










          • $begingroup$
            My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
            $endgroup$
            – Curtis
            21 hours ago






          • 1




            $begingroup$
            If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
            $endgroup$
            – tyobrien
            10 hours ago






          • 3




            $begingroup$
            @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
            $endgroup$
            – Bass
            10 hours ago










          • $begingroup$
            Oh yes that would be correct
            $endgroup$
            – tyobrien
            10 hours ago
















          4












          $begingroup$

          Here's one with six triangles (7 if you count triangles outside of triangles, which you don't):




          H with lines







          share|improve this answer









          $endgroup$









          • 1




            $begingroup$
            I suspect that this is the highest that can be gotten, but I'm not sure.
            $endgroup$
            – Brandon_J
            yesterday










          • $begingroup$
            My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
            $endgroup$
            – Curtis
            21 hours ago






          • 1




            $begingroup$
            If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
            $endgroup$
            – tyobrien
            10 hours ago






          • 3




            $begingroup$
            @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
            $endgroup$
            – Bass
            10 hours ago










          • $begingroup$
            Oh yes that would be correct
            $endgroup$
            – tyobrien
            10 hours ago














          4












          4








          4





          $begingroup$

          Here's one with six triangles (7 if you count triangles outside of triangles, which you don't):




          H with lines







          share|improve this answer









          $endgroup$



          Here's one with six triangles (7 if you count triangles outside of triangles, which you don't):




          H with lines








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered yesterday









          Brandon_JBrandon_J

          1,842230




          1,842230








          • 1




            $begingroup$
            I suspect that this is the highest that can be gotten, but I'm not sure.
            $endgroup$
            – Brandon_J
            yesterday










          • $begingroup$
            My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
            $endgroup$
            – Curtis
            21 hours ago






          • 1




            $begingroup$
            If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
            $endgroup$
            – tyobrien
            10 hours ago






          • 3




            $begingroup$
            @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
            $endgroup$
            – Bass
            10 hours ago










          • $begingroup$
            Oh yes that would be correct
            $endgroup$
            – tyobrien
            10 hours ago














          • 1




            $begingroup$
            I suspect that this is the highest that can be gotten, but I'm not sure.
            $endgroup$
            – Brandon_J
            yesterday










          • $begingroup$
            My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
            $endgroup$
            – Curtis
            21 hours ago






          • 1




            $begingroup$
            If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
            $endgroup$
            – tyobrien
            10 hours ago






          • 3




            $begingroup$
            @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
            $endgroup$
            – Bass
            10 hours ago










          • $begingroup$
            Oh yes that would be correct
            $endgroup$
            – tyobrien
            10 hours ago








          1




          1




          $begingroup$
          I suspect that this is the highest that can be gotten, but I'm not sure.
          $endgroup$
          – Brandon_J
          yesterday




          $begingroup$
          I suspect that this is the highest that can be gotten, but I'm not sure.
          $endgroup$
          – Brandon_J
          yesterday












          $begingroup$
          My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
          $endgroup$
          – Curtis
          21 hours ago




          $begingroup$
          My friend alleges that he can get 7, but won't show me how. Considering writing a python script to help prove that 6 is the max. Also I feel like there may be a mathematical proof of this with analytical geometry
          $endgroup$
          – Curtis
          21 hours ago




          1




          1




          $begingroup$
          If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
          $endgroup$
          – tyobrien
          10 hours ago




          $begingroup$
          If you just moved all of your blue lines up or down a bit you’d get 7 won’t you.
          $endgroup$
          – tyobrien
          10 hours ago




          3




          3




          $begingroup$
          @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
          $endgroup$
          – Bass
          10 hours ago




          $begingroup$
          @tyobrien you'd get one more triangle in the middle, but the two triangles right next to the new one would become quadrangles, right?
          $endgroup$
          – Bass
          10 hours ago












          $begingroup$
          Oh yes that would be correct
          $endgroup$
          – tyobrien
          10 hours ago




          $begingroup$
          Oh yes that would be correct
          $endgroup$
          – tyobrien
          10 hours ago











          1












          $begingroup$

          Does this count as 8 triangles?




          enter image description here







          share|improve this answer











          $endgroup$













          • $begingroup$
            The regions must be triangles.
            $endgroup$
            – noedne
            17 hours ago






          • 2




            $begingroup$
            The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
            $endgroup$
            – Bass
            17 hours ago












          • $begingroup$
            Oh ok! Thank you
            $endgroup$
            – K Sharing
            13 hours ago










          • $begingroup$
            @Bass Precisely!
            $endgroup$
            – Curtis
            12 hours ago










          • $begingroup$
            @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
            $endgroup$
            – Monty Harder
            11 hours ago
















          1












          $begingroup$

          Does this count as 8 triangles?




          enter image description here







          share|improve this answer











          $endgroup$













          • $begingroup$
            The regions must be triangles.
            $endgroup$
            – noedne
            17 hours ago






          • 2




            $begingroup$
            The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
            $endgroup$
            – Bass
            17 hours ago












          • $begingroup$
            Oh ok! Thank you
            $endgroup$
            – K Sharing
            13 hours ago










          • $begingroup$
            @Bass Precisely!
            $endgroup$
            – Curtis
            12 hours ago










          • $begingroup$
            @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
            $endgroup$
            – Monty Harder
            11 hours ago














          1












          1








          1





          $begingroup$

          Does this count as 8 triangles?




          enter image description here







          share|improve this answer











          $endgroup$



          Does this count as 8 triangles?




          enter image description here








          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 12 hours ago









          Ahmed Ashour

          964312




          964312










          answered 17 hours ago









          K SharingK Sharing

          13210




          13210












          • $begingroup$
            The regions must be triangles.
            $endgroup$
            – noedne
            17 hours ago






          • 2




            $begingroup$
            The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
            $endgroup$
            – Bass
            17 hours ago












          • $begingroup$
            Oh ok! Thank you
            $endgroup$
            – K Sharing
            13 hours ago










          • $begingroup$
            @Bass Precisely!
            $endgroup$
            – Curtis
            12 hours ago










          • $begingroup$
            @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
            $endgroup$
            – Monty Harder
            11 hours ago


















          • $begingroup$
            The regions must be triangles.
            $endgroup$
            – noedne
            17 hours ago






          • 2




            $begingroup$
            The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
            $endgroup$
            – Bass
            17 hours ago












          • $begingroup$
            Oh ok! Thank you
            $endgroup$
            – K Sharing
            13 hours ago










          • $begingroup$
            @Bass Precisely!
            $endgroup$
            – Curtis
            12 hours ago










          • $begingroup$
            @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
            $endgroup$
            – Monty Harder
            11 hours ago
















          $begingroup$
          The regions must be triangles.
          $endgroup$
          – noedne
          17 hours ago




          $begingroup$
          The regions must be triangles.
          $endgroup$
          – noedne
          17 hours ago




          2




          2




          $begingroup$
          The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
          $endgroup$
          – Bass
          17 hours ago






          $begingroup$
          The question says "Note that triangles inside of triangles only count once", which (I think) is a more complicated way of saying "the triangles are not allowed to overlap".
          $endgroup$
          – Bass
          17 hours ago














          $begingroup$
          Oh ok! Thank you
          $endgroup$
          – K Sharing
          13 hours ago




          $begingroup$
          Oh ok! Thank you
          $endgroup$
          – K Sharing
          13 hours ago












          $begingroup$
          @Bass Precisely!
          $endgroup$
          – Curtis
          12 hours ago




          $begingroup$
          @Bass Precisely!
          $endgroup$
          – Curtis
          12 hours ago












          $begingroup$
          @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
          $endgroup$
          – Monty Harder
          11 hours ago




          $begingroup$
          @Bass it is possible to create two triangles that overlap, but neither is inside the other, so they're not just different ways of saying the same thing.
          $endgroup$
          – Monty Harder
          11 hours ago











          -1












          $begingroup$

          Please have a look at this pic using 3 red lines on letter H.
          I count 10 triangles



          total triangles 9






          share|improve this answer








          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$









          • 9




            $begingroup$
            Overlapping triangles are not counted, so there are only 5 in your arrangement.
            $endgroup$
            – Jaap Scherphuis
            12 hours ago










          • $begingroup$
            Yeah, I agree with @JaapScherphuis
            $endgroup$
            – Brandon_J
            7 hours ago










          • $begingroup$
            @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
            $endgroup$
            – PerpetualJ
            4 hours ago










          • $begingroup$
            @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
            $endgroup$
            – Yout Ried
            2 hours ago


















          -1












          $begingroup$

          Please have a look at this pic using 3 red lines on letter H.
          I count 10 triangles



          total triangles 9






          share|improve this answer








          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$









          • 9




            $begingroup$
            Overlapping triangles are not counted, so there are only 5 in your arrangement.
            $endgroup$
            – Jaap Scherphuis
            12 hours ago










          • $begingroup$
            Yeah, I agree with @JaapScherphuis
            $endgroup$
            – Brandon_J
            7 hours ago










          • $begingroup$
            @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
            $endgroup$
            – PerpetualJ
            4 hours ago










          • $begingroup$
            @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
            $endgroup$
            – Yout Ried
            2 hours ago
















          -1












          -1








          -1





          $begingroup$

          Please have a look at this pic using 3 red lines on letter H.
          I count 10 triangles



          total triangles 9






          share|improve this answer








          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          $endgroup$



          Please have a look at this pic using 3 red lines on letter H.
          I count 10 triangles



          total triangles 9







          share|improve this answer








          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          share|improve this answer



          share|improve this answer






          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          answered 12 hours ago









          bi_noobbi_noob

          1




          1




          New contributor




          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





          New contributor





          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          bi_noob is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.








          • 9




            $begingroup$
            Overlapping triangles are not counted, so there are only 5 in your arrangement.
            $endgroup$
            – Jaap Scherphuis
            12 hours ago










          • $begingroup$
            Yeah, I agree with @JaapScherphuis
            $endgroup$
            – Brandon_J
            7 hours ago










          • $begingroup$
            @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
            $endgroup$
            – PerpetualJ
            4 hours ago










          • $begingroup$
            @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
            $endgroup$
            – Yout Ried
            2 hours ago
















          • 9




            $begingroup$
            Overlapping triangles are not counted, so there are only 5 in your arrangement.
            $endgroup$
            – Jaap Scherphuis
            12 hours ago










          • $begingroup$
            Yeah, I agree with @JaapScherphuis
            $endgroup$
            – Brandon_J
            7 hours ago










          • $begingroup$
            @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
            $endgroup$
            – PerpetualJ
            4 hours ago










          • $begingroup$
            @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
            $endgroup$
            – Yout Ried
            2 hours ago










          9




          9




          $begingroup$
          Overlapping triangles are not counted, so there are only 5 in your arrangement.
          $endgroup$
          – Jaap Scherphuis
          12 hours ago




          $begingroup$
          Overlapping triangles are not counted, so there are only 5 in your arrangement.
          $endgroup$
          – Jaap Scherphuis
          12 hours ago












          $begingroup$
          Yeah, I agree with @JaapScherphuis
          $endgroup$
          – Brandon_J
          7 hours ago




          $begingroup$
          Yeah, I agree with @JaapScherphuis
          $endgroup$
          – Brandon_J
          7 hours ago












          $begingroup$
          @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
          $endgroup$
          – PerpetualJ
          4 hours ago




          $begingroup$
          @JaapScherphuis Event with overlapping I count 6. How are there 10 here?
          $endgroup$
          – PerpetualJ
          4 hours ago












          $begingroup$
          @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
          $endgroup$
          – Yout Ried
          2 hours ago






          $begingroup$
          @PerpetualJ I count 10 with overlapping rot13(gbc bs gb u gb zvqqyr yvar gvzrf gjb naq gbc bs u gb obggbz erq yvar gvzrf gjb. ) not sure if that helps
          $endgroup$
          – Yout Ried
          2 hours ago




















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