Across
- 2. An angle greater than 90 degrees is ____.
- 5. Angles ABC and BCD are ________ angles.
- 6. What type of reasoning is when a conclusion is drawn based on observations, not known facts?
- 7. A transversal goes through two lines to create 8 angles. Two angles both on one side of the transversal in the interior of the two lines are _______ interior angles.
- 10. Adjacent angles share an exterior side and a ____.
- 12. The propositon that two opposite vertical angles are always congruent is under what theorem?
- 15. A property that can be proved is a ______.
- 19. Hal wants to explain and show why two angles are congruent. What should he use to do that?
- 21. The exact middle point of a line (segment) is the _____.
- 22. There is one line segement(AC)with a point B somewhere in the middle. Point B exists because AB+BC+AC. Which postulate backs this up?
- 23. An angle equal to 90 degrees is a ______ angle.
- 24. An angle measuring 60 degrees and another angle measuring 120 degrees added would together make a ______ angle.
- 25. _____ angles are angles that if added together, equal 90 degrees.
- 28. Angle 1 is 110 degrees and angle 2 is 70 degrees. Together they are what angles?
- 29. Interior angles on opposite sides of a transversal are called _____ _______ ____.
Down
- 1. Charlie uses known facts to prove that something is true. They are using what kind of reasoning?
- 3. If p, then q, is what type of statement?
- 4. Segment AB is divided equally in half by line CD.What is line CD called?
- 8. In a conditional statement, the "if" part is the ____.
- 9. Two angles do not have to be congruent to be ___________ angles.
- 11. a pair of opposite angles created by intersecting lines are called _______ angles.
- 13. A line that divides an angle into two equal parts is called an ____.
- 14. The ____ _______ postulate says that when two angles are placed next to each other, the resulting angle is equal to the sum of the two original angles.
- 16. Point "a" and point "b" are located on the same line. What are they?
- 17. The fact that if two angles are a linear pair they will have measurements that add up to 180 degrees is stated under which postulate?
- 18. If something is "given", it is a _______.
- 20. In a proof you have statements on the left and your _______ on the right.
- 26. In a conditional statement, the "then" part is the _____.
- 27. If an angle is equal to 45 degrees, it is ______.