| Description | Term |
| 12.)Sum of two angles is 180 degrees | |
| 13.)Two lines intersect at a | |
| 14.)Portion of a line with two endpoints | |
| 15.)Two non-coplanar lines that do not intersect | |
| 16.)Set of points that do not lie ont the same line | |
| 17.)represented by a line with arrowheads | |
| 18.)Angle measures greater than 90 degrees but less than 180 degrees | |
| 19.)lines that intersect to form a right angle | |
| 20.)Name of angle that measures 180 degrees | |
| 21.)Two planes intersect at a | |
| 22.)Two adjacent angles that are supplementary | |