| A | B |
|---|
| Point | representation for a location in space |
| Line | A continuous, infinite set of points |
| Plane | An infinite set of points on a flat surface |
| Collinear Points | 3 or more points that form a straight line |
| Line segment | a part of a line that is contained between 2 endpoints |
| Congruent | have equal measure |
| Midpoint of a segment | A point that divided a line segment into 2 equal segments |
| Bisector of a segment | a line that goes through the midpoint |
| Ray | Part of a line that includes an endpoint and is continuous on the other end |
| Opposite rays | Rays that share a common endpoint, but extend in different directions in a straight line |
| Angle | 2 rays with a common endpoint |
