Question

To calculate the area of the road paved by a rode roller, we need to find the ________ of the roller.​

Answer 1

Answer:

Curved surface area of cylinder=2πrh=2π(70)(80)=35200cm

2

=3.52m

2

Area of 40 revolutions=3.52×40=140.8m

2

Answer 2

Answer:

To calculate the area of the road paved by a rode roller, we need to find the ___width_____ of the roller.