A sector of a circle with radius 18 cm has central angle 120°. Find the area of the sector. Use π=3.14

 Given,

radius, r=18cm,

central angle, θ=120°

π=3.14 

Area of sector = θ/360 × π × r2

= 120/360 × 3.14 × 18 × 18

= 1/3 × 3.14 × 324

=3.14 × 108

=339.12 cm2