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7 July, 07:21

The length of a rectangle is 2 cm longer than its width. if the perimeter of the rectangle is 40 cm, find its area.

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  1. 7 July, 10:17
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    width = w

    length = w + 2

    perimeter = 2L + 2w

    40 = 2 (w+2) + 2w

    40 = 2w+4 + 2w

    40 = 4w+4

    36=4w

    w=36/4 = 9

    with = 9

    length = 9+2 = 11

    area = l x w = 9*11 = 99 square cm
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