SOLUTION: You have a 420m of fencing to enclose a rectangular plot that borders a river. If you do not fence the side along the river, find the length and width of the plot that will maximiz
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-> SOLUTION: You have a 420m of fencing to enclose a rectangular plot that borders a river. If you do not fence the side along the river, find the length and width of the plot that will maximiz
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Question 879479: You have a 420m of fencing to enclose a rectangular plot that borders a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! 420 = L + 2w
420-2w = L
A = Lw = (420-2w)w =
A = -2w^2 + 420
A = -2(w - 105)^2 +22050
max(105, 22050)
w = 105, L = 210
22,050 m^2, max area
