If the lateral surface of a cylinder is 94.2 cm2 and its height is 5 cm, then find (i) radius of its base (ii) its volume. (Use π = 3.14)
(i) Height (h) of cylinder = 5 cm
Let radius of cylinder be r
CSA of cylinder = 94.2 cm2
2πrh = 94.2
(2 × 3.14 × r × 5) = 94.2
r = 3 cm
(ii) Volume of cylinder = πr2h
= (3.14 × (3)2 × 5)
= 141.3 cm3