What is the area of a ground that can be levelled by a cylindrical roller of radius 3.5 m and 4 m long by making 10 rounds?

Find the number of cubes of side 2 m to be dropped in a cylindrical vessel of radius 14 m in order to increase the water level by 5 m.

The radius of a roller is 0.7 m and it is 2 m long. Then the area covered by it in 10 revolutions is

The diameter of a garden roller is 1.4 m and it is 2m long . Find the maximum area covered by it in 50 revolutions?

What part of a ditch 48 m long, 16.5 m broad and 4 m deep can be filled by the earth got by digging a cylindrical tunnel of diameter 4 m and length 56 m?

As shown in the figure above, a worker uses a cylindrical roller to help pave a road. The roller has a radius of 9 inches and a width of 42 inches. To the nearest square inch, what is the area of the roller covers in one complete rotation?