Question

A solid having ...... surface rolls.​

Answer 1

Curved Surface

Step-by-step explanation:

A solid having curved surface rolls.

If a solid have plane surface it cannot roll.Only a solid having curved surface can be rolled.

For example:

Cylinder,Sphere,Cone are the three dimensional figures having a curved surface so they that they can easily be rolled,while if we consider solid figure like cube, cuboid they cannot be rolled easily.

*Refer the figure attached for better understanding.