How many two-dimensional shapes make up a rectangular prism?

Pick one of the following choices.
1. four
2. eight
3. three
4. six

The answer is 6. There are six faces, or two-dimensional shapes, that make up a rectangular prism: the top and bottom faces which are rectangles, and four side faces which are also rectangles.

To determine the number of two-dimensional shapes that make up a rectangular prism, we first need to understand the structure of a rectangular prism. A rectangular prism is a three-dimensional shape that has six rectangular faces.

Each face of the rectangular prism is a two-dimensional shape. Therefore, the number of two-dimensional shapes that make up a rectangular prism is simply the number of faces it has.

A rectangular prism has six faces, so the correct answer is 4. Therefore, the correct choice is:

1. four

The correct answer is 4.