Question

The length of a rectangle is three times the width. the area of the rectangle is 108sq in. what is the width of the rectangle?

Answer 1

L = 3W

Area, A = L x W = 108 in2

Substitute L = 3W into the area equation, you get

A = 3W x W = 108

3W2 = 108

W2 = 108 / 3 = 36

W = √36 = 6 in