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SyA road roller takes 500 complete revolutions to move once over to level a road.Find the area of the road if the diameter of a road roller is 42 cm and its length is im(use =22 ) 7 |
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Answer» Answer: no. of revolution = AREA COVERED / CSA of the cylinder 500= area covered / 2π r h 500= area covered / 2*22/7*21*100 500= area covered / 13200 500*13200= area covered 6600000 cm² area covered 660m² =area covered |
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