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Across 5. The statement that is "if p, then q" is true and "p" is true, then "q" must be true. 10. The angles are adjacent and the two unshared rays form a line. 14. If two angles are supplementary to the same angle then the two angles are congruent. 16. The reverse of a conditional statement where the conclution comes fist and the hypothesis comes last. 17. If two angles are right angles then they are equal. 18. The part that comes after the word "then". 19. The statement formed that is the opposite of the original statement.

Down 1. A logic statement that has two parts, a hypothesis(p) and a conclusion(q). 2. If two line segments intersect, they form two pairs of vertical angles. 3. If two angles are complementary to the same angle then the two angles are congruent. 4. the statement that says "if p, then q" and "if q, then r" are true then "if p, then r" is true. 6. The course of reasoning aimed at demonstrating a truth or falsehood. 7. Writing math in two columns, the first your math and the second explain why you did that math. 8. Statements that mean the same thing as thte conditional statement 9. The statement that includes [hypothesis] "if and only if" [conclusion]. 11. The statement formed by negating both the hypothesis and the conclusion. 12. The part that comes after the word "if". 13. Less informal than a two-column proof and is only written in words 15. The opposite truth value that is formed by putting the word "not" in the phrase.