Math, asked by varshini16, 1 year ago

a pillar in the shape if a cylinder has the radious 21 cm and height 3 m.Find the curved surface area and volume of the pillar

Answers

Answered by Abhijeetsingh7
2
CSA of cylinder=2(pi )rh
=)2*22/7*21*0.03=3.96 square cm
volume=(pi)r square (h)
=)22/7*21*21*0.03=1.98*21=41.58 cubic cm


varshini16: tnx
Answered by Sonalidevarajan
2
hope this answer is correct
Attachments:

Sonalidevarajan: okay
varshini16: bug how
varshini16: buf how
varshini16: but how
varshini16: u gave as 4.158
Sonalidevarajan: it is 4.158 m^3
Sonalidevarajan: and it will be 0.04158 cm^3
Sonalidevarajan: formula is (22÷7) ×r^2×h
Sonalidevarajan: since h is in m we have to convert radius also to m
Sonalidevarajan: convert cm to m multiply the magnitude with 10^-2
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