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mod 12 vocab
| Question | Answer |
|---|---|
| area | The measure of the interior surface of a two-dimensional figure |
| 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 figures . |
| composite solid | An object made up of more than one solid |
| cone | A three-dimensional figure with one circular base connected by a curved figure with one circular base connected by a curved surface to a single point. |
| cylinder | A three-dimensional figure with a to parallel congruent circular bases connected by a curved surface. |
| diameter | The distance across a circle through its center |
| face | A flat surface of a polyhedron |
| hemisphere | One of two congruent halves of a sphere |
| lateral face | In a polyhedron, a face that is not a base. |
| pi | The ratio of the circumference of a circle to its diameter. The Greek letter (\pi \) represents this number. The value of pi is 3.1415926.... Approximations for pi are 3,12 for and 22/7 |
| prism | A polyhedron with two parallel congruent faces called bases. |
| pyramid | A polyhedron with one base that is a polygon and three or more triangular faces that meet at a common vertex. |
| radius | The distance from the center of a circle to any point on the circle. |
| regular pyramid | A pryramid whose base is a regular polygon and in which the segment from the vertex to the center of the base us altitude |
| semicircle | Half of a circle. The formula for the area of a semicircle is A=1/2 pi r ^2 |
| slant height | The height of each lateral face. |
| sphere | The set of all points in space that are from 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 |
| volume | The measure of the space occupied by a solid. standard units of measure are cubic units such as in^3 or ft^3 |