Geometry Chapter 2 Vocabulary

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Across
  1. 3. If <A is congruent to <B, then <B is congruent to <A.
  2. 6. The 'if' part of a conditional.
  3. 8. If a conditional is true and its hypothesis is true, then its conclusion is true.
  4. 9. When a conditional and its converse are, you can combine them as a true ______.
  5. 10. Two angles whose sides form two pairs of opposite rays. (angles that are across from each other)
  6. 11. Answers a conditional as true or false.
  7. 12. <A is congruent to <A
  8. 13. Two angles whose measures have a sum of 180 degrees.
  9. 15. This allows you to state a conclusion from two true conditional statements when the conclusion of one statement is the hypothesis of the other statement.
  10. 16. If <A is congruent to <B, and <B is congruent to <C, then <A is congruent to <C.
  11. 17. Another name for an if-then statement.
Down
  1. 1. A conditional that switches the hypothesis and conclusion.
  2. 2. The process of reasoning logically from given statements to a conclusion.
  3. 4. The 'then' part of a conditional.
  4. 5. Two angles whose measures have a sum of 90 degrees.
  5. 7. Two coplanar angles with a common side, a common vertex, and no common interior points. (side-by-side angles)
  6. 14. A proof written as sentences in a parapgraph.
  7. 18. A statement that you prove true.