Mikail used 220 inches of wire to make this figure.

The figure is made up of 2 indentical triangles, a 15 inch by 12 inch rectangle & a square of side 19 inches. What is the length of 1 side of each triangle if all the sides of the triangles are equal in length?

8 answers

The rectangle needs 2(15) + 2(12) or 54 inches
the square needs 4(19) or 6 inches.
So far we need 130 inches, leaving 90 for the 2 triangles.
For the two identical equilateral triangles we need 6 equal lengths or 90/6 or 15 inches for each side of the triangle

15 inches

15

30+24=54 19x4=76+54=130 220-130=90/6=15 answer:15

15

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