Across
- 4. A dot made by a sharp pointed object.
- 6. Flat infinite surface.
- 7. Points that do not lie on the same plane
- 9. a line with an endpoint that extends infinitely in one direction.
- 10. two lines that intersect at right angles.
- 12. points that are on the same line.
- 13. lines that are neither parallel nor intersecting
Down
- 1. a part of a line that is bounded by two distinct end points.
- 2. Set of points that extend in both directions.
- 3. Points that lie on the same plane.
- 5. Points that do not lie on the same line
- 6. lines that are coplanar and do not intersect.
- 8. obvious statements that requires no proof.
- 11. figure formed by two rays sharing a common endpoint.