Across
- 3. Two congruent angles opposite of each other
- 7. A Bisector that divides an angle into two equal parts
- 8. Two lines that intersect one another
- 9. Two lines that meet at a right angle
- 10. A triangle with two equal sides
- 13. A triangle with all angles smaller than 90 degrees
- 14. A triangle with no equal sides
- 16. Two angles in matching corners
- 18. Angle is greater than 90 degrees but smaller than 180 degrees
- 19. Angle is exactly 180 degrees
- 20. A line that crosses a set of parallel lines
- 21. Angle is exactly 90 degrees
Down
- 1. A triangle with an angle exactly 90 degrees
- 2. A triangle with three equal sides
- 4. Two congruent angles on opposing sides of the transversal line
- 5. A triangle with an angle larger than 90 degrees but smaller than 180 degrees
- 6. Two lines having the same distance between them continuously
- 11. Two or more angles with the sum of 180 degrees
- 12. Two or more angles with the sum of 90 degrees
- 13. Angle is less than 90 degrees
- 15. A line that joins through alternative sides
- 17. The angles on the inside of a polygon or 2 parallel lines (with a transversal)