Trig Functions on a Unit Circle

This Applet Lets the student visualize the connection between lengths of a figure connected from the unit circle and the standard trig functions of an angle.

The point P can be dragged around the unit circle.
The lengths are all positive.  The sign of the trig function can be derived from the quadrant of the line.

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This page uses JavaSketchpad, a World-Wide-Web component of The Geometer's Sketchpad. Copyright © 1990-2001 by KCP Technologies, Inc. Licensed only for non-commercial use.

There is a sample worksheet for this applet.

Return to main Math Applet Page at SLU.

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Last Modified 9/4/2005 by Mike May, S.J.