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What is the exact area of the region bounded by two concentric circles with radii 10 inches and 6 inches?
ChrizarSilerioLimbo
You probably want the area of the donut between the two circles.
The area of each circle is [ (pi) x R2 ].
The area between two concentric circles is (pi)R12 - (pi)R22 = (R12 - R22)pi = (102 - 62)pi
The "exact area" is 64(pi) inches2.
The approximate number is 201.062 inches2 (rounded)
Wiki User
∙ 13y ago
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