Across
- 6. non-coplanar, non-intersecting lines
- 7. divides a segment into two equal parts
- 9. two angles that add together to equal 90
- 10. means to switch the if and the then in a conditional statment
- 11. intersecting lines forming right angles
- 12. Statement the negation of the original conditional statment
- 15. Pair two adjacent angles that form a straight line
- 16. all on the same line
Down
- 1. to replace with an equal value
- 2. two angles that add together to equal 180
- 3. a statement accepted as fact
- 4. coplanar lines that never intersect
- 5. all in the same plane
- 8. when a=b is changed to b=a
- 10. having the exact same size and shape
- 12. a specific case that shows a conjecture is false
- 13. something is equal to itself
- 14. angles same side of the transversal and same orientation