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Demonstrations 1 - 20 of 21
Geometric Elements of a Circle
Thales's Theorem: A Vector-Based Proof
Euclid, Book 3, Proposition 22
Inscribed and Central Angles in a Circle
The Bomb Problem
The Perpendicular Bisector of a Chord
A Product of Chord Lengths in a Circle
The Chordal Theorem
Inscribed Angles That Intercept the Same Arc
Equally Distant Chords
Tangents to a Circle
Tangent Chord Angle
Intersecting Secants Theorem
Intersecting Chords Theorem
Opposite Angles of a Quadrilateral in a Circle
Circles & Triangles
Three Points Determine a Circle
Inscribed Angles in a Circle Subtended by the Same Chord
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