Answer: 3.85 cm²
Area of sector \(=\dfrac{l\times r}{2}\) (since \(\dfrac{\theta}{360}\pi r^2=\dfrac{r}{2}\cdot\dfrac{\theta}{360}2\pi r\)).
\[A=\frac{2.2\times3.5}{2}=3.85\ \text{cm}^2\]
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Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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