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Posted by on Wednesday, October 26, 2011 at 12:22pm.

A rectangular playing field is 3 times as long as it is wide. its area is 2500 metres squared. find the cost of fencing in the field if the fencing costs €15 per metre

  • geometry - , Wednesday, October 26, 2011 at 5:06pm

    width = x
    length = y

    y = 3x
    xy = 2500
    3x^2 = 2500
    x = 28.867
    y = 86.604

    perimeter = 2(x+y) = 230.942 m
    cost = 15*230.942 = 3464.13

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