Question

What is the shape of a road roller?

Answer 1

Hint: In this question, we need to comment on the shape of the rod roller. For this, we will overview the shape of the physical rod roller and compare it with the defined mathematical figures.

Complete step-by-step answer:
Road roller is a mechanical device which is used to put on its weight on the ground so as to flatten the ground with the desired materials. Compact sized road rollers are also used in the play grounds to flatten the ground properly. Road rollers are also known as steamrollers and roller compactors, regardless of their method of propulsion.
The main purpose of the roller is to flatten the ground on applying its weight uniformly over its lateral surface area which is regular in shape. A rough sketch of the roller is depicted below

From the figure, we can say that a road roller has two closed circular base which are separated by a certain defined length. So, we can say that a road roller is a closed hollow cylinder with equal base area.

Note: A compactor-type engineering vehicle used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations is known as road roller. Similar rollers are used also at landfills or in agriculture. Students often confuse the figure with the spherical figure but it is not, spherical mathematical shape is the three-dimensional representation of the circle while cylinder is the three dimensional representation of a plane.