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26 August, 09:40

The length of a rectangle is equal to three times its width. if the perimeter is equal to 240, what is the length of the rectangle?

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  1. 26 August, 09:54
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    L x W = 240

    L x (3w) = 240

    P = 2L + 2W=2 (3w) + 2w = 8w

    240/8 = 30

    l = 3w = 3 x 30 = 90

    2 (30) + 2 (90)

    60 + 180 = 240

    L = 60
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