| A | B |
|---|
| base | The parallel faces of a three-dimensional figure. |
| center | The given point from which all points on a sphere are the same distance. |
| cone | A three-dimensional figure with curved surfaces, a circular base and one vertex. |
| cubic units | Used to measure volume and tells the number of cubes of a given size that will fill a three-dimensional figure. |
| cylinder | A three-dimensional figure with all curved surfaces, two circular bases and no vertices. |
| edge | The intersection of faces of a three-dimensional figure. |
| face | The flat surface of a three-dimensional figure. |
| height | The shortest (and perpendicular) distance from the base of a parallelogram to its opposite side. |
| lateral face | A face of a three-dimensional figure which is not its base. |
| prism | A three-dimensional figure that has two parallel and congruent bases in the shape of polygons and at least three lateral faces shaped like rectangles. The shape of the bases tells the name of this figure. |
| pyramid | A solid figure that has a polygon for a base and triangles for sides. It is named for the shape of its base. |
| sphere | A three-dimensional figure with no faces, bases, edges, or vertices. All of its points are the same distance from a given point called the center. |
| surface area | The sum of the areas of all the surfaces (faces) of a three-dimensional figure. |
| three-dimensional figure | A figure that encloses a part of space. |
| vertex (vertices) | The point where the edges of a three-dimensional figure intersect. |
| volume | The amount of space that a three-dimensional figure contains. It is expressed in cubic units. |
| area | Teh amount of flat space within the boundaries of the figures. It is expressed in square units. |
| perimeter | The total length of the outside boundary of a plane figure. It is expressed in units of length. |
| circle | A plane figure whose points are the same distance from the center. |
| radius | The fixed distance from a circle or sphere to its center. |
| circumference | The perimeter of a circle. |
| square units | Used to measure area. |
| units | Used to measure perimeter. |
