Proofs Crossword Puzzle

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Across
  1. 1. A way to prove two triangles congruent using its hypotenuse and one leg.
  2. 3. Segment AB is congruent to segment AB
  3. 4. A right triangle has two ____.
  4. 6. Vertical angles are congruent
  5. 8. All triangles have sides and _______.
  6. 10. If A=B, then B can replace A in any expression.
  7. 12. Usually the first reason in a two-column proof
  8. 13. A type of triangle which has two congruent sides
  9. 15. A way to prove two triangles congruent using two angles and an included side
  10. 18. An angle ________ is a line splitting the angle into two congruent angles.
Down
  1. 1. The longest side of a right triangle
  2. 2. If a transversal intersects two parallel lines, then _____________ angles are congruent.
  3. 5. A way to prove two triangles congruent using two sides and one angle
  4. 7. Triangles with corresponding sides and angles are ________.
  5. 9. If a transversal intersects two parallel lines, then ________ interior angles are congruent
  6. 11. Segment CD is congruent to segment DC.
  7. 14. If the three sides of one triangle are congruent to the three sides of another triangle, then the triangle can be proved congruent using ___.
  8. 16. A way to prove two triangles congruent using two angles and a nonincluded side
  9. 17. A point that divides a segment into two congruent segments
  10. 19. All _____ angles are congruent.