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Intersecting Secants Theorem


	Let P be a point outside a circle and PB and PD be two secants. Then PBPA = PDPC. Drag the orange points to change the figure.


	Contributed by: Jay Warendorff

Chord (Wolfram MathWorld)

Secant Line (Wolfram MathWorld)

"Intersecting Secants Theorem" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/IntersectingSecantsTheorem/

Contributed by: Jay Warendorff

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