Final answer:
The bases for a cylinder must be two congruent discs that are parallel to each other.
Step-by-step explanation:
Mathematics
The bases for a cylinder must be two discs that are parallel and congruent. Congruent shapes have the same size and shape, so the two discs that form the bases of a cylinder must be identical.
For example, imagine a cylinder as a can of soup. The top and bottom of the can represent the bases, and they are both identical circles in shape and size, making them congruent.
In summary, the bases of a cylinder must be two congruent discs that are parallel to each other.
Learn more about Cylinder Bases