if diameter of a road roller is 0.9 metre and its length is 1.4 metre how much area of field will be pressed in its 500 rotations
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Answer:
Step-by-step explanation:
LSA of cylinder=2πrh
1m=100cm
Diameter=0.9×100
=90cm
Length=height=1.4×100=140cm
Radius=90/2=45cm
LSA=2×22/7×45×140
=39600cm
39600÷100=396m
Area of the field pressed=396×500=198000m
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