In order to level a patch on a road a road roller make 75 complete Revolution if the diameter of the role road roller is 84cm and its length is 1 m find the area of the page on the road
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Curved surface area of cylinder =2×22/7×r×h
=2×22/7×42×100
=44×600
=26400
It takes 75 revolutions so the area = 26400 × 75
=1980000cm square
=1980000/100×100
=198m square
=2×22/7×42×100
=44×600
=26400
It takes 75 revolutions so the area = 26400 × 75
=1980000cm square
=1980000/100×100
=198m square
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