a road roller takes 900 complete revolutions to move once over to level a road. find the area of the road level a road. find the atea og the road if the diameter of the roadroller is 126 cm and its length is 2.5 m.
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Given:-
length of road roller = 2.5m =
diameter = 126 cm = 1.26m
Radius = 0.61 m
CSA of road roller = 2πrh = 2 x 3.14 x 0.61 x 2.5m² = 9.577m²
Area of the road = 900 x 9.577m² = 8619.3m²
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