Question

1) The measure of a central angle of a circle is 150° and radius of a circle
is 21 cm. Find the area of the sector.​

Answer 1

Area of a sector = theta /360° x πr^2

Central angle= 150

Radius of circle = 21 cm

So area = 150/360 x 22/7 x 21 x 21 = 577.5 sqcm