SOLUTION: What is the maximum perimeter of a rectangle with an area of 84 square inches?

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Question 311208: What is the maximum perimeter of a rectangle with an area of 84 square inches?
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
A = L*W
84 = LW
At this point, you can solve for either L or W.
I will solve for W.
84 - L = W
The perimeter of a rectangle is found using P = 2L + 2W.
P = 2L + 2(84 - L)
P = 2L + 168 - 2L
P = 168 inches