Question

The area covered in 7 revolutions by a road roller,if its radius and height are 2 m and 4 m respectively is ​

Answer 1

Answer:

Radius = 2m

Height = 4m

CSA of cylinder = Area covered in 1 revolution

CSA = 2 x π x r x h

=> 2 x 22/7 x 2 x 4

50.28 m^2

Area covered in 7 revolutions = 50.28 x 7 = 351.96 m^2

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