Question

The perimeter of an equilateral triangle is 9 inches more than the perimeter of a square, and the side of the triangle is 6 inches longer than the side of the square. Find the side of the triangle.​

Answer 1

Answer:

9 inches

Step-by-step explanation:

Perimeter of equilateral triangle = 3x

Perimeter of square = 4x

3(x + 6) = 9 + 4x

3x + 18 = 9 + 4x

-x = -9

x = 9