Trigonometry Vocabulary

3. the unit of plane angle equal to the angle at the center of a circle subtended by an arc equal in length to the radius.
6. revolutions per minute.
7. a straight line that intersects a curve at two or more points.
9. the opposite way the hands on a clock move.
10. the inverse function of the sine.
11. the inverse function of the tangent.
14. a ine or curve that the graph of a relation appraches more and more closely the further the graph is followed.
16. the inverse function of the cosine.
18. ratio of the hypotenuse to the opposite side of a right angled triangle.
19. ratio of the adjacent to the opposite side of a right-angled triangle.
20. Greek symbol can represent x value.

1. ratio of the length of the side opposite the given angle to the length of the hypotenuse of the right triangle.
2. the space between two lines or planes that intersect.
4. half the difference between the minimum and maximum values of the range.
5. a wave shaped like the graph of y=sinx.
8. of or relating to or according to the principles of trigonometry.
12. the direction the hands on a clock move.
13. a line that touches a curve but does not intersect it.
15. having a common boundary or edge.
17. is the x-coordinate of the point on the unit circle so that the ray connecting the point with the origin makes an angle of q with the positive x-axis.