Question

Find the perimeter of the square if the length of its diagonal is 12.72 inches. Round to the nearest tenth

Answer 1

36 in.

Explanation:

side = x

x^2 + x^2 = 12.72^2

2x^2 = 161.79

x^2 = 80.899

x = 9

perimeter = 4x = 4 * 9 = 36