Across
- 4. the point where 2 rays come together to form an angle
- 7. 3 or more points on the same line
- 8. 2 adjacent angles that form a line
- 9. an angle whose measure is exactly 180 degrees
- 10. same size and shape
- 12. 2 angles whose sum is 180 degrees
- 13. an angle whose measure is less than 90 degrees
- 16. an angle whose measure is exactly 90 degrees
- 17. a flat surface made up of points that extend forever in all directions
- 20. that never intersect
Down
- 1. a single location on a flat surface
- 2. lines that meet to form a right angle
- 3. points not on the same line
- 5. angles that share a common ray and vertex point
- 6. part of a line that has 2 endpoints
- 11. congruent non-adjacent angles that are formed by an intersecting line
- 14. a collection of points that travel in opposite directions forever
- 15. part of a line that has has one endpoint and continues in one direction
- 18. 2 angles whose sum is 90 degrees
- 19. an angle whose measure is greater than 90 degrees but less than 180 degrees