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.

Answer 1

Given: Radius of the sector, r = 3.5 cm

Length of the arc, l = 2.2 cm

Formula: Area of the sector = `1/2 lr` 

= `1/2 xx 2.2 xx 3.5`

= 3.85 cm²

Thus, the area of the sector is 3.85 cm².