a diameter of a roller is 84cm and its length is 120 cm It takes 500 complete Revolution to roll once over the playground 2 Level find the area of playground in square metres
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dadu16:
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Diameter =84cm =84/2=42cm
Height =120cm
Curved surface area =2 pi r h
=2×22/7×42×120 =31680cm^2
=It takes 500 revolutions so, =31680×500
=15,840,000cm^2 or 15840000cm/100×100=1584m^2
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Height =120cm
Curved surface area =2 pi r h
=2×22/7×42×120 =31680cm^2
=It takes 500 revolutions so, =31680×500
=15,840,000cm^2 or 15840000cm/100×100=1584m^2
Hope it helps u please mark as brainliest.
In case of any doubt pls comment below
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