| A | B |
|---|
| parallel lines | lines that will never intersect & have same slope |
| perpendicular lines | lines that meet to form right angles |
| vertical angles | angles that are across from one another & are = |
| complementary angles | pair of angles whose sum is 90 |
| supplementary angles | pair of angles whose sum is 180 |
| point | a specific location in space |
| line | a straight path that extends in 2 directions |
| ray | an endpoint that extends forever in 1 direction |
| plane | a flat surface that extends forever in all directions |
| adjacent angles | angles that are next to each other |
