Surface Area and Volumes – Exercise 13.8 – Class IX

Assume π = 22/7 , unless stated otherwise. Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 m Solution: (i) Volume of sphere = 4/3 πr3 = 22/7 x 4/3 x 73 = 1437.33 m3 (ii) Volume of sp…