SOLUTION: The length of a rectangle is four times its width. If the perimeter of the rectangle is 90ft , find its area.

Question 810067: The length of a rectangle is four times its width.
If the perimeter of the rectangle is 90ft , find its area.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
L = 4W
P = 2L + 2W = 90
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2L + 2W = 90
2(4W) + 2W = 90
8W + 2W = 90
10W = 90
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W = 9
L = 36
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A = 324
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