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8 January, 16:17

the length of one side of a rectangle is 12 more than the width. the perimeter of the rectangle is 56 cm. find the length and the width of the rectangle

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  1. 8 January, 16:43
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    The width is 8cm and the length is 20cm.

    Explanation: The length is 12 more than the width so the equation is l=12+w and Perimeter equation is P=2l + 2w. You substitute l and plug in the equation.

    56=2 (12+w) + 2w

    56=24+4w

    32=4w

    w=8

    l = 12+8=20
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