Question

Suppose a right cylinder was bent into a U-shape and was compared to another right cylinder. What can be said about their volumes?

Answer 1

B) There is not enough information to tell since they are not between parallel planes.

Explanation:

In order for Cavalieri's principle to be true, both cylinders must have the same cross section. They may or may not. The requirement of being between parallel planes was broken. Therefore -- There is not enough information to tell since they are not between parallel planes

Answer 2

The volume of the U-shape will be half the volume of the original right cylinder.

Explanation:

If we are given a right cylinder and it was bent into a U shaped then this U-shaped figure could also be considered as a half cylinder.

We could see from the figure attached how this shape looks like.

and now the volume of this half cylinder will be half the volume of the actual right cylinder.