Across
- 3. quadrilateral with four congruent sides and angles
- 5. add to 180 degrees
- 6. quadrilateral with four congruent angles
- 9. quadrilateral with two sets of parallel sides
- 10. distance around the outside of a circle
- 11. three sided polygon
- 14. add to 90 degrees
- 17. 90 degrees
- 18. opposite over hypotenuse
- 19. quadrilateral with one set of parallel sides
Down
- 1. twice the radius
- 2. half the diameter
- 4. four sided polygon
- 7. adjacent over hypotenuse
- 8. opposite over adjacent
- 10. equal
- 12. quadrilateral with four congruent sides
- 13. distance around the outside of a polygon
- 15. greater than 90 degrees
- 16. less than 90 degrees