# SOLUTION: An iron pipe having outer radius of 4 centimeter is 5 meter long. Its curved surface has to be painted. find the cost of painting it at the rate of Rs.14 per sq.meter ?

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 Click here to see ALL problems on Surface-area Question 394641: An iron pipe having outer radius of 4 centimeter is 5 meter long. Its curved surface has to be painted. find the cost of painting it at the rate of Rs.14 per sq.meter ?Answer by Alan3354(30959)   (Show Source): You can put this solution on YOUR website!An iron pipe having outer radius of 4 centimeter is 5 meter long. Its curved surface has to be painted. find the cost of painting it at the rate of Rs.14 per sq.meter ? ------------ sq meters SA = 0.4*pi sq meters Cost = 0.4*pi*14 R