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16 February, 11:50

The length of a rectangle is 3 times it's width. If the perimeter of the rectangle is 144cm. Find it's area

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  1. 16 February, 12:56
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    Let w=width

    3w=length

    perimeter = w+w+3w+3w=8w=144

    w = 18

    l=54

    area=972
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