Across
- 3. never intersect
- 6. supplementary when parallel
- 10. Assumed true.
- 12. If a=b, then b=a.
- 14. Switches if-then.
- 15. Intersects multiple lines
- 16. Negates if-then
- 17. Same size and shape
- 20. add up to 180°
- 21. a=a
- 22. The "if" part
- 23. always equal
- 24. Switches and negates if-then.
- 25. add up to 180°
- 26. if-then
- 27. meet at 90°
- 28. Unproven guess
Down
- 1. supplementary when parallel
- 2. lines that Never intersect
- 4. The "then" part
- 5. match when lines are parallel
- 7. rise over run
- 8. equal when parallel
- 9. If and only if.
- 11. If a=b and b=c, then a=c.
- 12. Never intersect, not parallel.
- 13. Disproves a statement
- 15. Proven statement.
- 18. equal when parallel
- 19. Opposite statement
