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Math

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The length of a rectangle is 11 cm more than its width. The area of the rectangle is 2040 cm^2.
Find the dimensions of the rectangle.

  • Math - ,

    width --- x
    lengyth -- x+11

    x(x+11) = 2040
    x^2 + 11x - 2040 = 0
    (x-4)(x+51) = 0
    x = 40 or x = - 51 , negative width makes no sense,
    so x = 40

    the rectangle is 40 cm by 51 cm

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