Trig Vocab

3. The angle between the horizontal and the line from the object to the observer’s eye, assuming the object is positioned lower than the observer.
6. A unit of measure for angles defined as the ratio of the arc length to the radius of the circle.
10. The reciprocal of the sine function
13. The x-coordinate of the point on a unit circle corresponding to a given angle.
14. In a right triangle, the side opposite the given angle.
15. The arc of a circle that lies between two lines, rays, or segments that intersect the circle.

1. The angle between the horizontal and the line from the object to the observer’s eye, assuming the object is positioned higher than the observer.
2. The starting position of the ray that forms part of an angle.
4. The length of the curve formed by an arc.
5. In a right triangle, the side between a given angle and the right angle.
7. The side opposite the right angle in a right triangle, which is the longest side.
8. The angle through which a rotating object travels in a unit of time.
9. The area of a portion of a circle bordered by two radii and the intercepted arc, calculated as a fraction of the entire circle.
11. The reciprocal of the tangent function;
12. The union of two rays having a common endpoint.