| A | B |
| Point | an exact location in space |
| Line | collection of points that go on in both directions |
| Line Segment | has 2 endpoints and includes all the points between the endpoints |
| Ray | part of a line, it has one endpoint and continues on in only one direction |
| Angle | two rays that have the same endpoint |
| Vertex | the endpoint that two rays share or have in common |
| Intersecting Lines | lines that cross and have one point in common |
| Perpendicular Lines | intersecting lines that form right angles |
| Parallel Lines | lines that never cross, they are always the same distance apart and do not share any points |
| Congruent | shapes that are exactly the same shape and size |