Chapter: Mensuration· Mathematics Part 2 (Geometry)
Answer: 3.85 cm\(^2\)
Area of sector \(= \dfrac{l \times r}{2}\), where \(l\) is the length of the arc.
\(= \dfrac{2.2 \times 3.5}{2} = \dfrac{7.7}{2} = 3.85\) cm\(^2\).