Flow Chart Proofs Crosswors

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Across
  1. 2. Two angles whose measures have a sum of 90 degrees are _______ angles
  2. 3. Likes to chase mice
  3. 5. Lines that are not coplanar and never intersect
  4. 7. Triangle congruence postulate: two sides and the included angle
  5. 8. Two lines that intersect to form right angles are ________ lines
  6. 9. Flying mammal
  7. 11. Proving statements are true by reasoning from accepted postulates, definitions, theorems, and given information is ________ reasoning
  8. 13. Has a trunk
  9. 17. A quadrilateral with four congruent sides
  10. 19. Points all in one line are ______ points
  11. 21. Large marsupial
Down
  1. 1. Triangle congruence postulate: two angles and a non-included side
  2. 2. Points all in one plane are ______ points
  3. 4. Two angles in a plane that have a common vertex and a common side but no common interior points
  4. 5. Two angles whose measures have a sum of 180 degrees are _______ angles
  5. 6. A statement in a proof that must be shown to be true
  6. 10. A figure formed by two rays that have a common endpoint
  7. 12. Triangle congruence postulate: three sides
  8. 14. A statement that is accepted without proof
  9. 15. A quadrilateral with one pair of opposite sides parallel
  10. 16. Man's best friend
  11. 18. A line, segment, or ray that divides an angle or a segment into two congruent parts
  12. 20. Triangle congruence postulate: two angles and the included side