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9 October, 04:14

The area of a rectangular invitation card is 3/10 square foot. given that the length of the card is 4/5 foot, find its perimeter.

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  1. 9 October, 07:16
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    First, you have to calculate for it's width.

    3/10 = 4/5 * w

    w = 3/10 * 5/4 = 3/8

    Perimeter = 2 (l+w) = 2 (4/5 + 3/8)

    P = 94/40 = 47/10 ft = 4.7 ft
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