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.)
1 answer:
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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