Question 1205762
Find the dimension of a rectangle that will yield the maximum area of its perimeter is 54 meters. What is the maximum area? 
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Max area is a square
---> 13.5*13.5 = 182.25 sq neters
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A = L*W
P = 2L + 2W = 54
L+W = 27
A = L*(27-L) = 27L - L^2
d/dL(27L - L^2) = 27 - 2L = 0  ------- 1st derivative = 0
2L = 27
L = 13.5 meters