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12 March, 17:45

The sides of a rectangle are in ratio 3:5 and the rectangle's area is 135 sq cm. find the dimensions of the rectangle.

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  1. 12 March, 18:03
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    Ratio:

    Width : Length

    3 : 5

    Let the factor be x

    (3x) (5x) = 15x²

    15x² = 135

    x² = 9

    x = √9

    x = 3

    Width = 3 x 3 = 9 cm

    Length = 3 x5 = 15 cm

    Answer: The dimension is 9cm by 15 cm
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