| __ | 1. | collinear | | A. | point, line and plane |
| __ | 2. | congruent | | B. | a flat surface made up of 3 or more points |
| __ | 3. | coplanar | | C. | a location in space that has no size or shape |
| __ | 4. | line | | D. | made up of 2 or more points that extends in both directions |
| __ | 5. | line segment | | E. | points lying on the same line |
| __ | 6. | midpoint | | F. | points lying in the same plane |
| __ | 7. | plane | | G. | part of a line with two end points |
| __ | 8. | point | | H. | having the same measure; equal |
| __ | 9. | segment bisector | | I. | a point that divides a segment into two congruent segments |
| __ | 10. | undefined terms | | J. | a segment, ray, line or plane that a segment at its midpoint |