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1 October, 07:02

Area of a rectangle is 42 sq inches and one side is 12 inches long what is the perimeter of the rectangle?

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  1. 1 October, 09:19
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    Area if the rectangle = 42 sq. inch

    Area of a rectangle = l * b

    42 = 12 * b

    b = 42/12 = 3.5 inch

    Now, perimeter of a rectangle = 2 (l + b)

    = 2 (12+3.5) = 2 (15.5) = 31 inches
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