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
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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
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