Question

A geometric pattern is made using 17 triangles and squares. If the triangles and squares have a total of 64 sides how many triangles were used

Answer 1

Let s be the number of squares and t be the number of triangles.

s + t = 17---->4s + 4t = 68

4s + 3t = 64---->4s + 3t = 64

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t = 4, s = 13

4 triangles, 13 squares