Answer:
58.83 ft^2
Explanation:
Finding the radius:
A = πr^2
90 = πr^2
90/π = r^2
28.6 = r^2
5.3 = r
Using the area of a sector of a circle formula:
θ/360 x πr^2
240/360 x π(5.3)^2
= 58.83 ft^2
A = 60 ft²
the area (A) of the shaded sector is calculated as
A = area of circle × fraction of circle
= 90 ×
= 30 × 2
= 60 ft²
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