Across
- 4. all sides are equal
- 8. 3 noncollinear points connected by segments
- 9. point that bisects a segment
- 10. the common endpoint in an angle
- 13. 180 degrees
- 14. distance from zero
- 15. smaller than 90 degrees but not negative
- 17. having the same measure
- 18. 2 angles that add up to 180 degrees
- 19. angles forming a line
Down
- 1. all angles are equal
- 2. same line
- 3. two endpoints and all the points between
- 5. greater than 90 degrees
- 6. 90 degrees
- 7. same plane
- 11. extends in opposite directions without end
- 12. rate of change
- 16. two rays with a common endpoint
- 17. 2 angles that add up to 90 degrees