A road roller takes 800 complete revolutions to move once over to level a road. Find the area of the road if the diameter of the road roller is 98 cm and length is 1 m.
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Answer:
Step-by-step explanation:
Length= h= 1 m = 100cm
r= 49
Therefore,
Area planed in one revolution
= Curved surface area of roller
= 2πrh
=2X22/7X49 X100
= 2X22X7 X 100
= 44X 7 X 100
= 30800
= 308sq.m
Therefore,
Area plane in 800 revolution
= 308 X 800
=. 246400sq.m
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