Across
- 3. a statement that has the opposite truth value
- 8. two angles whose sum is 180 degrees
- 11. p if and only if q
- 15. two lines that intersect to form right angles
- 16. two angles that are across from each other
- 18. two coplanar lines that never intersect
- 19. formed by switching the hypothesis and conclusion of a conditional statement
- 21. a statement that can be written in if-then form
- 22. split into two sections
Down
- 1. two angles whose sum is 90 degrees
- 2. formed by negating and switching the hypothesis and conclusion
- 4. a triangle with three congruent angles
- 5. two angles that are adjacent and supplementary
- 6. a triangle with two congruent sides
- 7. an angle that measures more than 90 degrees
- 9. a point in the middle of a segment
- 10. having the same size and shape
- 12. formed by negating the hypothesis and conclusion of a conditional statement
- 13. an angle that measures less than 90 degrees
- 14. a triangle with three congruent sides
- 17. a triangle with no congruent sides
- 20. an angle that measures exactly 90 degrees
