Answer:
125pi/2 cm^2
Explanation:
area of a sector formula = (angle/360)(pi)(r^2)
radius = 10 cm
angle = 225
plug in
(225/360)(pi)(10^2)
it becomes
(5/8)pi(100)
= 500/8pi
= 125/2pi
= 125/2pi cm^2
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