Trigonometry: Vocabulary

4. The study of the relationship between sides and angles of a right-angled triangle.
5. The ratio of the opposite side to the hypotenuse (Sinθ=0/H).
10. Unit of Measurement for angles.
16. The side directly opposite the given angle.
17. The side next to the angle, running from the given angle to the right angle.
19. North, South, East, West.
20. 90 degrees.
21. The measurement between two intersecting lines.

1. The angle from the horizontal to your line of sight, when looking up at an object.
2. The longest side of a right-angled triangle which is directly opposite the right angle.
3. The angle from the horizontal to your line of sight, when looking down at an object.
6. The ratio of the opposite side to the adjacent side (Tanθ=O/A).
7. A straight line from left to right.
8. Identities that relate the sides of a right-angled triangle to an interior angle
9. An straight upright line that is from top to bottom.
11. A mnemonic to remember the trigonometric ratios.
12. A three-figure bearing using angles from 000 to 360 degrees to show the amount of turning measured clockwise from North.
13. An angle measurement used to describe the direction of one location from a given reference point.
14. Greek letter used as a pronumeral for angles (θ)
15. The ratio of the adjacent side to the hypotenuse (Cosθ=A/H).
18. Three-sided shape.