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