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The length of a rectangle is twice its width if the area of the rectangle is 200 m squared, find its perimeter.

2 answers

A = Lw

w = width
2w = length

200 = w(2w)
200 = 2w^2
100 = w^2
10 = w

P = 2L + 2w
w = 10
L = 2w = 20

P = 2(10) + 2(20)
P = ?
60 in
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