The Sine, Cosine and Tangent Functions
Now that you understand and can name the different parts of a right triangle, we can introduce the first three trigonometric functions: the sine, cosine and tangent functions.
Tutorial: The Sine, Cosine and Tangent Functions
It is important to be able to name the sine, cosine and tangent of an angle in a right triangle. Watch the following tutorial to learn how this is done. Select the play button to begin the tutorial, and then use the navigation buttons to continue or reset the tutorial. View the presentation as often as you would like, and take notes as you follow along. Be sure to set your volume at a reasonable level before you begin.
Download the tutorial as a PDF.