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Posted by on Friday, October 28, 2011 at 2:23pm.

A town decides to build a playground using one of the existing walls beside an elementary school. What is the maximum area they can enclose using only 100ft of donated fence?

  • MATH - , Friday, October 28, 2011 at 5:00pm

    Letting L be the length against the building,

    100 = L + 2W
    so, L = 100-2W

    A = WL = W(100-2W)
    = 100W - 2W^2

    This has a max at W = 100/4 = 25
    L = 50

    A = 25*50 = 1250 ft^2

  • MATH - , Tuesday, November 15, 2011 at 9:32pm

    how to do input output tabol

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