The length of a rectangle is twice its width. If the area of the rectangle is 162 in2, find its perimeter.

Answer 1

Rectangle Formulas:

A=L*W

P=2*L + 2*W

Given:

L=2W

A=162 in²

Solve:

A = L*W = 2W*W = 2W² = 162

W² = 81

W = √81 = 9

L=2W = 2*9 = 18

P=2*L + 2*W = 2*18+2*9 = 36+18 = 54

Answer:

Perimeter is 54 in