4o The diameter of a cylindrical pillers is 24 cm and height is 3-5 m – InterviewSolution

1.	4o The diameter of a cylindrical pillers is 24 cm and height is 3-5 m respectively. The cost of painting of thepillers is 1.25 per square metre, then find the cost of painting 12 same pillers.t "1
Answer» Total surface area of cylinder = 2πr(r+h)Here radius = 24/2 = 12 cm = 0.12mNow 2 * 3.14 * 0.12(0.12 + 3.5) = 2.72m^2

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