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15 January, 09:03

If the ratio of the length to the breadth of a rectangle be 5:3 and its perimeter is 144m find the length of the rectangle

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  1. 15 January, 11:01
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    length=45 m (2 sides = 90m)

    Step-by-step explanation:

    5x + 3x=144

    8x=144

    x=18 (each of the 8 parts of 144 measure 18m)

    5 (18) + 3 (18) = 144

    90 + 54=144

    90/2=45 (1 length side)

    54/2=27 (1 width side)

    The rectangle = 45+45 + 27+27 = 144
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