Intersecting Chords Theorem


	Let P be a point inside a circle. Let AB and CD be two chords through P. Then, AP BP = CP DP. Drag the orange points to change the chords.


	Contributed by: Jay Warendorff

Chord (Wolfram MathWorld)

"Intersecting Chords Theorem" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/IntersectingChordsTheorem/

Contributed by: Jay Warendorff

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Euclid's Elements
Plane Geometry
High School Geometry
High School Mathematics

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The Chordal Theorem
Equally Distant Chords
Tangent Chord Angle
The Perpendicular Bisector of a Chord
The Eyeball Theorem
Angle Bisector Theorem
The Ratio Theorem
Tangent Circles
Tangents to a Circle
Inscribed Angles That Intercept the Same Arc

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