Across
- 5. a triangle with two congruent sides
- 8. polygon with three sides
- 10. polygon with six sides
- 13. two lines that intersect to form right angles
- 14. polygon with five sides
- 18. tool used to measure angles
- 21. a set of points with one endpoint
- 22. two lines that will never intersect
- 23. polygon with nine sides
Down
- 1. less than 90 degrees
- 2. a set of points that go on forever
- 3. polygon with eight sides
- 4. unit used to measure angles
- 6. a triangle with three congruent sides
- 7. polygon with four sides
- 9. a triangle with no congruent sides
- 11. more than 90 degrees
- 12. polygon with ten sides
- 15. angles across from each other
- 16. angle measures exactly 180 degrees
- 17. polygon with twelve sides
- 19. the common endpoint of two angles
- 20. two angles that share a common side