The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the diameter and the height of the pillar.
Given,
Curved surface area of cylinder = 264 m2
Volume of cylinder = 924 m3
= 2πrh = 264
= h = 
And, πr2h = 924
(putting value of h from equation (I)
= πr2×
= 
So, diameter of cylinder = 2r = 2×7 = 14 m
From equation (i)
=
15