intersection of secants, chords, and tangents of a circle

Drag the Steps slider to view the proofs of the relationship of segment lengths when secant, chords, or tangents intersect a circle. Drag point C inside or outside the circle to see what happens.
intersection of secants, chords, and tangents of a circle
Matt James[br]Lincoln Southwest High School[br]Lincoln, NE[br]mjames2@lps.org
– Melzoo

Information: intersection of secants, chords, and tangents of a circle