Answer:
Explanation:
she giotu htcg
Answer: pi(160) or 160 pi
First find the area of the whole circle.
A=pi(r^2)
A=pi((18+4)^2)
A=pi(484)
Next find the area of the none shaded circle.
A=pi(18^2)=pi(324)
Then subtract to get pi(160)
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