Geometry Crossword

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