Tangent - Chord
How to Use this Applet
The Graph Area
- Drag any highlighted location on the circle ( • ) to move that location along the circle.
- Drag any non-highlighted location on the circle to change the radius of the circle.
- Drag the center of the circle ( • ) to re-position the circle.
- <SHIFT>+drag the center of the circle ( • ) to re-position the circle horizontally or vertically.
- Use the "RESET" button to restore the applet to the initial state.