Across
- 5. making both the hypothesis and conditional negative then swapping them
- 7. below 90 degrees
- 9. are always congruent
- 12. point between two other points on a line
- 14. is always 180 degrees
- 15. adds up to 90 degrees
- 16. amount of space between two points
- 17. lines that intersect
- 18. one end point with another point that goes in one direction
Down
- 1. a line with two end points
- 2. over 90 degrees
- 3. lines that don't intersect
- 4. capital letter or a dot
- 6. line that goes through an angle
- 8. thing that goes forever with points on it
- 10. is always supplementary
- 11. when the hypothesis and conditional are swapped
- 13. flat surface with points inside it