A cylindrical roller 2.5m in length, 1.75m in radius when rolled on a road was found to cover the area of 5500square mts. howmany revolutions did it made?
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area of cylindrical roller= 2pi.r.h
=2 x 22/7 x (1.75). (2.5)
=27.5 m^2
no of revolution =given area /cylindrical area
=5500/27.5=200
hence 200 revolution made by cylindrical roller
=2 x 22/7 x (1.75). (2.5)
=27.5 m^2
no of revolution =given area /cylindrical area
=5500/27.5=200
hence 200 revolution made by cylindrical roller
ameer487:
thanku
tell me answer for question 1
sorry, question 2
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