22 T = S. A metal pipe is 7 m long, the cross-section has inner diameter 2 m and outer diameter 2.2 m. Find the cost of painting the pipe from both sides at the rate of 7 10 per square metre. (n = 24 diun 100 cm Find the number of revolutions required by the
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Given Outer diameter = 2.2m. Then, Radius of outer diameter R = 1.1m. = 44. = 93.72m^2
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Given Outer diameter = 2.2m. Then, Radius of outer diameter R = 1.1m. = 44. = 93.72m^2.30-Jan-2018
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