Across
- 2. Angle smaller than 90
- 4. Angles having a common vertex and a common side
- 6. A triangle with all congruent sides
- 7. A (non self-intersecting) quadrilateral with two pairs of parallel sides
- 8. When two lines are crossed by another line, the angles in matching corners
- 12. A succinct statement of a theorem regarding congruent triangles
- 13. "if" "then" statement switched
- 14. Side side side
Down
- 1. Two angles that add up to 180 degrees
- 2. Concerned with the relative lengths of the two segments that a triangle's side is divided into by a line that bisects the opposite angle
- 3. A part of a line that begins at a particular point and extends endlessly in one direction
- 5. The middle number in organized data
- 8. An exception to a proposed general rule or law
- 9. Two lines which meet at a right angle (90 degrees)
- 10. Reasoning in which the premises seek to supply strong evidence for the truth of the conclusion
- 11. A plane figure with ten straight sides and angles