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18-05-2020
Mathematics

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How do I find the area of the shaded blue region?

How do I find the area of the shaded blue region class=

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18-05-2020

That's a 240 degree sector of a 9 inch radius circle. The whole circle has area πr² and we want 240/360 of it.

A = (240/360) π (9²) = 54 π

Answer: 54 π square inches

That's the exact answer. An approximation is

169.646 square inches

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