find the area of road if the radius of a road roller is 42 cm and length is 1 m and it takes 750 complete Revolution to move once over to level the road?
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Diameter of the road roller = 84 cm
Radius of the road roller = 42 cm
Length of the road roller = 1 m = 100 cm
CSA of the road roller = 2πrh = 2 x 22/7 x 42 = 264 cm2
Area of the road levelled in one revolution = 264 cm2
Area of the road levelled in 750 revolutions = 264 x 750 = 198000 cm2
Area of the road = 198000 cm2 = 19.8 m2
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Radius of the road roller = 42 cm
Length of the road roller = 1 m = 100 cm
CSA of the road roller = 2πrh = 2 x 22/7 x 42 = 264 cm2
Area of the road levelled in one revolution = 264 cm2
Area of the road levelled in 750 revolutions = 264 x 750 = 198000 cm2
Area of the road = 198000 cm2 = 19.8 m2
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