Across
- 2. ratio of adjacent leg to hypotenuse
- 4. distance from the center to the circumference of the circle
- 5. ratio of opposite leg to hypotenuse
- 8. study of measuring triangles
- 10. fixed line going left and right
- 12. theorem stating sum of legs squared equals hypotenuse squared
- 13. flat; parallel to ground
- 14. standing; perpendicular to ground
- 17. variable for an acute angle
- 19. the two shorter sides of a right triangle
- 20. angle in degrees observer must look up
Down
- 1. next to; neighboring
- 3. across from
- 6. circle centered at origin with radius of one unit
- 7. ration of opposite leg to adjacent leg
- 9. triangle with one 90 degree angle
- 11. fixed line going up and down
- 13. the longest side of a right triangle
- 15. triangle 30-60-90 or 45-45-90 drawn to x-axis
- 16. triangle identical in shape but not necessarily size
- 18. one of four congruent sections of unit circle