diameter of Roller is 84cm and its length is 120 cm It takes 500 complete revolutions to move once over the level of a paragraph find the area of playground in metre square
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hey frnd, here is Ur answer >>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
d=84cm
r=42cm
we have to find it's lateral surface area
c.s.a=2πrh
=2×22/7×42×120
=44×6×120
=264×120
=31680cm^2
=316.8m^2
area of playground=500×316.8
=158400m^2
hope this helps...
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
d=84cm
r=42cm
we have to find it's lateral surface area
c.s.a=2πrh
=2×22/7×42×120
=44×6×120
=264×120
=31680cm^2
=316.8m^2
area of playground=500×316.8
=158400m^2
hope this helps...
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