| A | B |
|---|
| Point | Has no size, only location, and are named by using capital letters (A,B,C, etc.) |
| Line | Has no thickness and continues in opposite directions without end. |
| Plane | A flat surface that extends indefinitely in four directions. It has no thickness. |
| Segment | Part of a line. It is made up of two points and the line between those points. |
| End Points | The outer points of a line segment. |
| Ray | Part of a line, it has one endpoint and the line extending from that point. |
| Collinear | A line that goes through a set of points. |
| Noncollinear | A set of points that does not have a line going through them. |
| Parallel Lines | Lines in the same plane that do not intersect (cross). |
| Parallel Segments | Segments that are contained in parallel lines. |
| Point Symbol | Dot with a capital letter |
| Line Symbol | Two capital letters with a 2-arrowed line on top ( <--> ) |
| Segment Symbol | Two capital letters with a bar on top ( -- ) |
| Ray Symbol | Two captial letters with a one arrowed line on top ( ---> ) |
