If the area of a sector of a circle bounded by an arc of length `5pi` cm is equal to `20pi\ c m^2` , then its radius is (a) 12 cm (b) 16 cm (c) 8 cm (d) 10 cm

If the area of a sector of a circle bounded by an arc of length 5pi cm is equal to 20pi\ c m^2 , then the radius of the circle is (a) 12 cm (b) 16 cm (c) 8 cm (d) 10 cm

If the area of a sector of a circle bounded by an arc of length 5pi cm is equal to 20pi\ c m^2 , then the radius of the circle is (a) 12 cm (b) 16 cm (c) 8 cm (d) 10 cm

Answer each question by selecting the proper alternative from those given below each question so as to make each statement true : If the area of a sector of a circle bounded by an arc of length 5pi cm is equal to 20 pi cm^(2) , then its radius is ....... cm.

The area of a sector of a circle of radius 5 cm, formed by an arc of length 3.5 cm is

The area of a sector of a circle of radius 8 cm , formed by an arc of length 5.6 cm , is :

Find the area of the sector of a circle of radius 8 cm and arc with length 15 cm.

Find the area of the sector of a circle of radius 8 cm and arc with length 15 cm.