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13 October, 11:07

Samantha rectangular gift is 10 inches. by 12 inches and is framed with a ribbon. She wants to use the same lengths of ribbon to frame a circular clock. what is the maximum radius of the circular clock?

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  1. 13 October, 11:19
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    The dimension of the rectangular gift is 10 by 12 inches so let us find the perimeter of this rectangle.

    Perimeter of rectangular gift = 2 (L + W) = 2 (10 + 12) = 44 inches

    Since we are to use the same length of ribbon to wrap a circular clock so the perimeter or circumference of the clock should be no more than 44 inches.

    2πr = 44

    r = 44/2π

    r = 7.003

    Therefore, the maximum radius of the circular clock is 7 inches.
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