Rectangular Prism: A three-dimensional shape with six rectangular faces, also known as a cuboid.
Base Area: The area covered by one side (base) of an object. In this case, there are two base areas at both ends of the open-top rectangular box.
Slant Height: The diagonal distance from one corner to another on any face of an object. However, since our box only has vertical sides (no slanted sides), slant height is not applicable here.