Chord Theorem 1
This application allows you to view one of several theorems regarding chords and circles. Move the endpoints of Segment CD and Segment AB until they are congruent. What else do you observe? Is this always true? Select the "Show Theorem" box to see the theorem that corresponds with this application.
David Travis Lincoln North Star Math Department Lincoln, NE <mailto:firstname.lastname@example.org> Credit to Peter Tierney-Fife