| A | B |
|---|
| polyhedron | A solid with flat surfaces that are polygons. |
| prism | A polyhedron that has two parallel, congruent bases in the shape of polygons. |
| pyramid | A polyhedron that has a polygon for a base and triangles for sides. |
| regular pyramid | A pyramid whose base is a regular polygon. |
| similar solids | Solids that have the same shape but not necessarily the same size. |
| slant height | The length of the altitude of a lateral face of a regular pyramid or cone. |
| solid | Three-dimensional figure. |
| sphere | The set of all points in space that are a given distance, r, from the center. |
| surface area | The sum of the areas of all the surfaces (faces) of a 3-dimensional figure. |
| vertex | Where 3 or more planes intersect at a point. |
| volume | The measure of space occupied by a solid region. |
