Question

Radius of sector of a circle is 5 cm and length of its arc is 2.8 cm. Find the area of the sector.

Answer 1

Given: Radius of the circle (r) = 5 cm

Length of the arc (l) = 2.8 cm

Formula: `"Area of sector" (A) = 1/2 xx "Length of arc" (l) xx "Radius" (r)`

= `1/2 xx 2.8 xx 5`

= `1/2 xx 14`

= 7 cm²

The area of the sector is 7 cm².