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9 February, 17:11

This exercise involves the formula for the area of a circular sector. find the area of a sector with central angle 3π/5 rad in a circle of radius 9 m. (round your answer to one decimal places.)

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  1. 9 February, 17:30
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    The formula of interest is

    A = (1/2) r²·θ

    You have r = 9 m, θ = 3π/5. Then the area is

    A = (1/2) (9 m) ² (3π/5) = 24.3π m²

    The sector area is ...

    A ≈ 76.3 m²
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