the diameter of roller 84cm.It takes500 complete revolution to level the playground.find the area of playground
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Answer:
Given=diameter of roller =84 cm and it takes 500
therefore, radius=84/2=42cm
height=100cm
The lateral surface area of cylinder
=2×22/7×42×100
=44×6×100
=26400cm^2
=26400cm^2/10,000
convert cm^2 into m^2
=246/100m^2
therefore surface area of rofe rolller
=2.64m^2
The area of road = area covered in 500 revolutions
Area=2.64×500
area=1320m^2
Therefore, area covered by roller =1320m^2
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