Across
- 3. A perpendicular segment from a vertex to the opposite side
- 5. A ray that divides an angle into two equal angles
- 6. A triangle with no equal sides
- 8. The point where the medians of a triangle meet
- 10. The point where angle bisectors intersect
- 11. Angle that adds up to 180°
- 12. Angle that adds up to 90°
- 13. The point where altitudes of a triangle meet
- 15. A segment from a vertex to the midpoint of the opposite side
- 17. A triangle with all angles less than 90°
- 18. Opposite angles formed by intersecting lines
- 19. A triangle with one right angle
Down
- 1. A line that cuts a segment into two equal 90° parts
- 2. The point where perpendicular bisectors intersect
- 4. Adjacent angles whose non-common sides form a straight line
- 5. Two angles that share a side and a vertex
- 7. Statement formed by switching hypothesis and conclusion
- 9. The side in a triangle that does not touch a given angle
- 14. Statement formed by switching and negating both parts
- 16. A logical statement written in “if–then” form