Across
- 3. A line that intersects two or more lines.
- 5. The inverse of the converse of a statement.
- 9. A measure of the steepness of a line.
- 10. A statement containing “if and only if.”
- 11. A statement believed to be true but not yet proven.
- 12. A statement that has been proven based on postulates and axioms.
- 14. A statement where both the hypothesis and conclusion are negated.
- 16. Two angles whose sum is 180 degrees.
- 18. A property stating that any quantity is equal to itself.
- 21. A statement accepted without proof.
- 22. A statement written in “if-then” form.
- 24. A pair of angles on opposite sides of a transversal, outside two lines.
- 25. A statement where the hypothesis and conclusion are switched.
Down
- 1. A paid of angles on opposite sides
- 2. Angles opposite each other when two lines intersect.
- 4. Two angles inside parallel lines on the same side of a transversal.
- 6. Lines that do not intersect and are not parallel.
- 7. A pair of angles inside two lines and on opposite sides of a transversal.
- 8. Two adjacent angles that form a straight line.
- 13. A property stating that an object is congruent to itself.
- 15. The “if” part of a conditional statement.
- 17. Two lines in the same plane that never intersect.
- 19. A property stating if a = b, then b = a.
- 20. A specific case that disproves a statement.
- 23. The opposite of a given statement.