| A | B |
| Transversal | A line that intersects 2 other lines and several angles are formed |
| Alternate Interior Angles | The nonadjacent angles on opposite sides of the transversal and on the interior of the 2 lines |
| Corresponding Angles | 2 lines in the same plane cut by a transversal whose angles are on the same side and in corresponding positions |
| Measure of corresponding angles | Angles are equal |
| Supplementary | Quality of pairs of interior angles on the same side |