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The diameter of a roller is 84cm and its length is 120cm . It takes 500 complete revolution to move once over to level a playground . the area of the

playground in metre square is:-


Diameter=84 cm=0.84 m
r=0.42 m
length=120 cm=1.2 m
area of the roller=πr²=π*0.1764=0.5544
total area=0.5544*500=277.2 m²
2 4 2
if u can see now
hmmmm ya sure..
u tooo
The CSA of a cylinder=2*pi*r*h
the no.of revolutions taken to level the playground once=500
therefore Ar. of the playground=500*31680=15840000cm^2 /1584 m^2
2 5 2
thankssssssss #geethaanilakkad
welcome. :)
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