Question

A cylindrical pillar is 1m in diameter and 4.2 m in height. find the cost of white -waashing the curved surface of the pillar at the rate of rs 15/m2​

Answer 1

Answer:

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Given :-

r=1/2m

h=4.2m

Solution:-

Curved surface area of pillar =2πrh

=2×22/7×1/2×4.2

=92.4/7

=13.2m^2

Cost of painting 1m^2=₹15

Total cost of painting the curved surface area of pillar

=₹15×13.2

=₹198

Hope this helps you...

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Answer 2

Explanation:

abswer will be 198....