#### Question

The 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.

#### Solution

Radius of the sector, r = 3.5 cm

Length of the arc, l = 2.2 cm

∴ Area of the sector = \[\frac{1}{2}lr = \frac{1}{2} \times 2 . 2 \times 3 . 5\] = 3.85 cm^{2 }

Thus, the area of the sector is 3.85 cm^{2}.

Is there an error in this question or solution?

Solution The measure of an arc of a circle is 80° cm and its radius is 18 cm. Find the length of the arc. ( π = 3.14 ) Concept: Length of an Arc.