The length of a rectangle is four times its width. if the area of the rectangle is 400 yd2 , find its perimeter.

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asked Feb 7, 2018 8.8k views

2 Answers

RLave · Answer 1 · 2018-02-09T03:29:36+0000

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.

The length of a rectangle is four times its width. if the area of the rectangle is 400 yd2 , find its perimeter.

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