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18 March, 11:18

A circle has an area of p square feet and a circumference of q feet. If p=2.5q, what is the radius of the circle?

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  1. 18 March, 15:01
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    A=.5*r^2*theta

    a=p

    2.5q=2pi (r)

    2pi (r) =.5 (r^2) (2pi)

    1=.5r

    2=r
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