-For the concentric circles, the outer circle radius is R = 6 in while that of the inner circle is r = 3 in. Find the exact area of the annulus (ring) that is determined by the two circles.

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-For the concentric circles, the outer circle radius is R = 6 in while that of the inner circle is r = 3 in. Find the exact area of the annulus (ring) that is determined by the two circles.

-For the Concentric Circles, the Outer Circle Radius Is R