Trigonometry

3. triangle A triangle having a 90° angle. (2 Words)
7. The side in a right triangle that is across the reference angle.
8. The three trig ____________ are sine, cosine, and tangent.
9. of elevation The angle made by the horizontal line of sight and an upward sight to the object. (3 Words)
10. The trig ratio that represents the opposite over the adjacent lengths of a right triangle.
11. To stretch or shrink.
14. of depression The angle made by the horizonal line of sight and a downward sight to the object. (3 Words)
16. To flip or the mirror image.
17. The side in a right triangle that is next to the angle that you are studying.
19. Abbreviated form of the word cosine.
20. to slide vertically or horizontally.

1. The distance around a circle.
2. The study of the properties of triangles.
4. theorem a² + b² = c² (2 Words)
5. The longest leg of a right triangle.
6. 3.141592654.....
12. Greek letter for the missing reference angle. (Hint: θ)
13. A vertex usually measured in degrees.
15. The other Greek letter that is used for the missing reference angle. (Hint: β)
18. The trig ratio that represents the adjacent over hypotenuse lengths of a right triangle.
21. Abbreviated for of the word tangent.