math

(please explain with brief explanation)

The area of a rectangular field is 2000 sq.m and its perimeter is 180m. Form a quadratic equation by taking the length of the field as x and solve it to find the length and breadth of the field. the length and breadth are A) (205m, 80m) B) (50m, 40m) C) (40m, 50m) D)None

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asked by Nithin
  1. length = x
    width = 2000/x

    2x + 2 (2000/x) = 180

    x + 2000/x = 90

    x^2 + 2000 = 90 x

    x^2 - 90 x + 2000 = 0

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    posted by Damon

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