Question

Find the perimeter of a rectangle when it’s length is three times it’s width and the area is 108

Answer 1

Explanation:

Let w = width

Then 3w = length

A= LW

108 = (3w)(w)

108 = 3w2

36 = w2

6 = w 18 = length Perimeter = 2(6) + 2(18) = 48 in