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A triangle with integer sides has perimeter 16. How many such non-congruent triangles are there? (A 3-4-5 triangle is considered congruent to a 3-5-4 triangle because we can reflect and rotate the triangles until they match up.)

 Jul 29, 2022
 #1
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yur mom

 Jul 29, 2022
edited by brainiac  Jul 29, 2022
 #2
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Possible triangles

 

2 7 7

3 6 7

4 5 7

4 6 6

5 5 6

 

cool cool cool

 Jul 29, 2022

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