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9 June, 16:35

Find the radius of a circle whose area equals the area of a rectangle that measures 2 ft. by 11 ft. (Use = 22/7) 7/2 ft. √7 ft. 0.5√ (14) ft.

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  1. 9 June, 18:51
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    First of all, the two figures are equivalent. Find the area of the rectangle and you'll get the area of the circle

    A (r) = A (c) = W*L = 2*11 = 22 ft²

    A (c) = πr²

    π = 22/7

    So

    22/7*r² = 22

    Multiply both sides for 7/22 to get rid of the fraction.

    7/22 * 22/7 * r² = 22 * 7/22

    r² = 7

    r = √7
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