A road roller takes 750complete revolution to move once over to level a road. Find the area of the road if the diameter of a road roller is 91cm and length is 1.25m
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diameter = 91 cm
so radius = d÷2 = (91÷2) cm
length =1.25m 1.25×100=125cm
Curved surface area =2πrh =2×22÷7×91÷2×125 =22÷7×91×125 =22×13×125 =286×125 =35750cm ^2
750 revolution
so 35750×750= 26812500 cm^2
so radius = d÷2 = (91÷2) cm
length =1.25m 1.25×100=125cm
Curved surface area =2πrh =2×22÷7×91÷2×125 =22÷7×91×125 =22×13×125 =286×125 =35750cm ^2
750 revolution
so 35750×750= 26812500 cm^2
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