Across
- 4. angles: Angles that are opposite each other when two lines intersect.
- 9. interior angles: Angles on the same side of a transversal and inside two lines.
- 11. planes: Two planes that never intersect.
- 15. A statement obtained by reversing the hypothesis and conclusion of a conditional statement.
- 16. Two angles that add up to 180 degrees.
- 18. Having the same size and shape.
- 21. An unproven statement based on observations.
- 22. Lines that are not parallel and do not intersect.
- 23. A statement that has been proven based on axioms or postulates.
- 24. A property where if a = b and b = c, then a = c.
Down
- 1. A statement accepted without proof.
- 2. A property where any figure or object is equal to itself.
- 3. A statement obtained by negating both the hypothesis and conclusion of a conditional statement.
- 5. pair: Two adjacent angles that form a straight line.
- 6. lines: Lines that intersect to form right angles.
- 7. interior angles: Angles that are on opposite sides of a transversal and inside two lines.
- 8. exterior angles: Angles that are on opposite sides of a transversal and outside two lines.
- 10. exterior angles: Angles on the same side of a transversal and outside two lines.
- 12. A statement obtained by negating both the hypothesis and conclusion of a converse.
- 13. A property where if a = b, then b = a.
- 14. The measure of steepness of a line, calculated as rise over run.
- 15. statement: A statement in the form "if P, then Q."
- 17. A line that intersects two or more other lines.
- 19. lines: Lines in the same plane that never meet and are always the same distance apart.
- 20. angles: Angles in matching positions when a transversal crosses two lines.
