Answers

  • Brainly User
2016-03-25T20:44:51+05:30

given radius = 14cm and height = 18cm

curved surface area of cylinder = 2 pie r h

= 2* 22/7* 14* 18 = 1584 sq. cm

= 1584/10000 sq. m

now C.S.A. of 100 such pillars = 1584/10000 * 100 = 15.84 sq. m

cost of painting 1 pillar = Rs.120

cost of painting 100 such pillars = 15.84 * 120

                                                    = Rs. 1900.80--------------Ans.


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