Across
- 5. less than 90 degrees
- 7. points in the same plane
- 9. angle angle with the measure of 90 degrees
- 11. have eight sides
- 14. 2 angles that measure 180 degrees
- 15. 2 angles next to each other
- 17. has six sides
- 18. angles across from each other on intersecting lines
- 20. the measurement of a surface
Down
- 1. has five sides
- 2. have twelve sides
- 3. measure of 180 degrees
- 4. ajacement/ supplementary angles that form a straight line
- 6. have three sides
- 8. measures greater than 90 degrees but less than 180
- 10. same sides as a quadrilateral
- 12. have four sides
- 13. have ten sides
- 16. 2 angles measured to 90 degrees
- 19. angles with the same measure