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Math Ch8 Vocab
| Question | Answer |
|---|---|
| center | The point from which all points on a circle are the same distance. |
| circle | The set of all points on a plane that are the same distance from a given point called the center. |
| circumference | The distance around a circle. |
| composite figure | A figure that is made up of two or more three-dimensional figures. |
| diameter | The distance across a circle through its center. |
| lateral face | In a polyhedron, a face that is not a base. |
| lateral surface area | The sum of the areas of all of the lateral faces of a solid. |
| pi | The ratio of the circumference of a circle to its diameter. The Greek letter π represents this number. |
| radius | The distance from the center of a circle to any point on the circle. |
| regular pyramid | A pyramid whose base is a regular polygon and in which the segment from the vertex to the center of the base is the altitude. |
| semicircle | Half of a circle. The formula for its area is 1/2 πr². |
| slant height | The height of each lateral face. |
| surface area | The sum of the areas of all of the surfaces (faces) of a three-dimensional figure. |
| volume | The number of cubic units needed to fill the space occupied by a solid. |