Across
- 4. 3.1415...
- 5. A four-sided polygon
- 9. sinA over line a = sinB over line b
- 13. The relationship of a triangle's angles and sides
- 14. A quadrilateral with two pairs of congruent sides
- 15. A line attached to a circle by a single point
- 16. A quadrilateral with only one set of parallel lines
- 18. A polygon all equal sides and all equal angles
Down
- 1. The height of a shape
- 2. The diagonal of a right triangle
- 3. The perimeter of a circle
- 4. a over b = c over d
- 6. Line c = a^2 + b^2 - 2(ab)cosC
- 7. An angle facing upwards
- 8. An angle pointed downward
- 10. A slice of pie
- 11. The amount of space in a three-dimensional object
- 12. The amount of space in a two-dimensional object
- 17. A segment connecting the center of a regular polygon to the midpoint of its side
- 19. Half the diameter of a circle or sphere