Question

please answer it......

Answer 1

The covered surace area of cylindrical pillar is 264m2 and its volume is 924m2. Find the diameter and the height of the pillar

2πrh = 264

πrh = 132

πr²h = 924

132r = 924

r = 924/132 = 7

Diameter = 7x 2 = 14m

πrh = 132

2 x 22/7 x 7 x h = 132

h = 132/44 = 3m