SOLUTION: A rectangle has one side twice the length of the other. Express the area of the rectangle as a function of its perimeter A(P)?

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Question 153028: A rectangle has one side twice the length of the other. Express the area of the rectangle as a function of its perimeter A(P)?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
P = 2L + 2W
L = 2W
P = 2(2W) + 2W
P = 6W
So W = P/6
L = P/3
Area = L*W
Area = (P/3)*(P/6)
A+=+P%5E2%2F18