Question

In a temple there are 15 cylindrical pillars. The diameter of each pillar is 18 cm and height is 4.9 cm find the cost of painting each pillar at the rate of 20 rupees per m2

Answer 1

Answer:

Step-by-step explanation:

Radius = diameter/2

=> 18/2 = 9cm

CSA of cylinder = 2πrh

=>2*22/7*9*4.9

=> 2*22*9*.07

=> 277.2 cm²

Cost of painting 15 cylindrical pillars at Rs. 20 per m².

=> 277.2*15*20

=> Rs. 83160