Asked by Sonu
Diameter and length of a roller are 84cm and 120cm .In how many revolutions can the roller level the playground of area 1584m²?
Answers
Answered by
Steve
the rolling area of the cylinder is
84*120π cm^2 = 3.17 m^2
now just divide.
84*120π cm^2 = 3.17 m^2
now just divide.
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