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The length of a rectangle is five times its width. if the area of the rectangle is 320 feet, find its perimeter.

Respuesta :

Length - l

Width - w

Given,

l = 5w

Given,

Area = 320

l*w = 320

5w*w = 320

w² = 64

w = √64

--- w = 8

--- l = 5w = 5*8 = 40

Hence, the length of the rectangle is 40 ft and width is 8ft.
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