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March 25, 2017

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Draw a rectangle with a perimeter of 58 m and an area of 120 m square

  • math - ,

    2 x + 2 y = 58
    x y = 120

    2(120/y) + 2 y = 58

    120/y + y = 29

    y^2 - 29 y + 120 = 0

    (y - 24)(y-5) = 0
    y = 24 or y = 5
    so I think it is length of 24 and width of 5

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