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6 July, 20:04

The length of a rectangle is 3 cm greater than its width. The perimeter is 24 cm. Find the dimensions of the rectangle. 3 cm, 9 cm 4.5 cm, 7.5 cm 7.5 cm, 10.5 cm 10.5 cm, 13.5 cm

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  1. 6 July, 21:09
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    Length (L) : w + 3

    width (w) : w

    Perimeter (P) = 2L + 2w

    24 = 2 (w + 3) + 2 (w)

    24 = 2w + 6 + 2w

    24 = 4w + 6

    18 = 4w

    18/4 = w

    9/2 = w

    4.5 = w

    Length (L) : w + 3 = 4.5 + 3 = 7.5

    Answer: width = 4.5 cm, length = 7.5 cm
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