1.

Radius of a sector of a circle is 3.5 cm and length of its arc is 2.2 cm. Find the area of the sector.Given: Radius (r) = 3.5 cm, length of arc (l) = 2.2 cm To find: Area of the sector.

Answer»

Area of sector \(=\frac{l \times r}{2}\)

\(=\frac{2.2 \times 3.5}{2}\)

= 1.1 × 3.5 = 3.85 cm2

∴ The area of the sector is 3.85 cm2.



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