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30 June, 20:00

The length of a rectangle is four times its width. If the area of the rectangle is 400 cm squared, find its perimeter

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  1. 30 June, 23:04
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    Length=x

    Width=4x

    4x•x=400 sq cm

    x = 10 cm

    4x = 40 cm

    P=2•10cm+2•40 cm

    =100 cm
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