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5 January, 13:24

The length of a rectangle is 4 times the width. The perimeter is 90 cm. Find the width and length.

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  1. 5 January, 13:30
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    Let width=W, length=L and perimeter=P

    P=2 (L+W) = 90

    L=4W

    then

    2 (5W) = 90

    then W=9 and L=36
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