Across
- 2. the "if" portion of an if-then statement
- 4. a series of statements and corresponding reasons forming a valid argument
- 5. an example that proves a conjecture false
- 6. triangles with congruent corresponding sides and angles
- 8. the angle formed by two sides of a triangle
- 10. concluding that a statement is either true or false
- 11. a mathematical statement that is accepted without proof
Down
- 1. a statement that can be written in "if-then" form
- 3. the "then" portion of an if-then statement
- 7. the side located between two angles of a triangle
- 9. a mathematical statement that must be proven before accepted