|
 point | an exact location in space |
| line segment | part of a line with two endpoints |
| line | series of points extending in both directions without end |
| ray | part of a line that starts at one endpoint and extends forever in one direction. |
| angle | two rays with a common endpoint |
| vertex | point at which two rays of an angle or two sides of a polygon meet |
| intersecting | two lines or segments that cross at a common point |
| perpendicular | two lines or segments that cross and form a right angle |
| parallel | two lines or segments in the same plane and will never cross |
| compass | tool used to draw circles and arcs |
| straight edge | used in constructions to draw straight lines |
| constructions | geometric drawings made with only a compass and straight edge |
| bisect | divide into two equal parts |
| cross section | formed by slicing a solid |
| cylinder | solid figure with two congruent, parallel, circular bases |
| sphere | 3-D figure with no faces, bases, edges, or vertices |
| radius | distance from center of a circle to any point on the circle |
| pyramid | solid figure with triangular faces and a polygonal base |
| prism | solid figure with two congruent, parallel faces |
| diameter | distance across a circle through the center |