A road takes 750complete revolutions to make over a once to level a road.Find the area of the road If the diameter of road roller is 84cm and length 1m
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Answer:
Length of roller=h=1m
diameter of roler=84cm
radius of roller=84/2
=42cm
=42/100m
Given,
tgd roller takes 750 complete revolutions to level the whole roads
area of roads=750×Area covered in 1 revolution
=750×lateral surface area
=750×2pirh
=750×2×22/7×42/100×1
=1500×132/100
=15×132
=1980m^2
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