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Math

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A rectangular pad of concrete is outlined by a 52-m stripe of paint. Find the dimensions of this pad if the surface area is 168m^2.

  • Math -

    2 (L + W) = 52 (perimeter)
    L*W = 168 (area)

    2*168/W + 2W = 52
    168/W + W = 26
    W^2 - 26W = 168
    (W-14)(W-12) = 0

    W = 14 or 12 m
    If W = 12, L = 14 and vice versa

    The pad dimensions are 14 x 12 m.

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