8.8k views
5 votes
The length of a rectangle is four times its width. if the area of the rectangle is 400 yd2 , find its perimeter.

2 Answers

2 votes
Let W = width, and L = length.

L = 4W

A = LW

400 = (4W)(W)

400 = 4w^2

4W^2 = 400

W^2 = 100

W = 10

The width is 10 yd, and the length is 40 yd.
User RLave
by
8.4k points
6 votes
I don’t know for sure but the length is 40 and the width is 10.
User Ganbayar Gansukh
by
8.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.