| A | B |
| parallel lines | are lines that never intersect |
| transversal | a line that cuts parallel lines crating 8 angles |
| supplementary angles | 2 angles with the sum of 180 |
| congruent angles | are equal in measures |
| vertical angles | angles that are across from each other - that are congruent. |
| adjacent angles | are angles that are next to each other. |
| alternate interior angles | are inside the parallel lines on opposite sides of the transversal. They are congruent. |
| alternate exterior angles | are outside the parallel lines on opposite sides of the transversal. They are congruent. |
| corrosponding angles | are in the same position on the other paralles line and they are Congruent |