GeoGebra
GeoGebra
Circle Theorems
Circle Theorems
Circle Theorems
Author:
Edward Knote
Topic:
Circle
Circle Theorems
Congruent Circles: Definition
Circle Tangent-Types Illustrator
Properties of Tangents Drawn to Circles (A)
Properties of Tangents Drawn to Circles (B)
Int+Ext Tangent Action!
Diameters & Chords I (VA)
Diameters & Chords I (VB)
Congruent Chords: Quick Investigation
Congruent Chords (I)
Inscribed Angle Theorem (V1)
Proof Exercise: Inscribed Angle Theorem (Case 1)
Proof Exercise: Inscribed Angle Theorem (Case 2)
Proof Exercise: Inscribed Angle Theorem (Case 3)
Inscribed Angle Theorem Dance: Take 2!
Inscribed Angle Theorem: Corollary 1
Where to Sit? (I)
Thales' Theorem (VA)
Thales' Theorem (VB)
Inscribed Angle Intercepts Semicircle
Cyclic Quadrilaterals (IAT: Corollary 3)
Angle Formed by Chord & Tangent (I)
Angle Formed by Chord & Tangent (II)
Angle Formed by 2 Chords (I)
Angle Formed by 2 Chords (II)
Crossing Chords: Proof Hint
Angles from Secants and Tangents (V1)
Angle From 2 Secants (V2)
Secants: Proof Hint
Congruent Chords Action (A)
Equidistant Chord Action
Butterfly Theorem Action!
Not Your Everyday Chord & Tangent Theorem
Cut-The-Knot Action (2) !!!
Square, Tangent, and Two Congruent & Tangent Circles
GoGeometry Action 1!
GoGeometry Action 2!
GoGeometry Action 3!
GoGeometry Action 4!
GoGeometry Action 5!
Geometric Mean Illustration
GoGeometry Action 6!
GoGeometry Action 8!
Cut-The-Knot Action (6)!
GoGeometry Action 9!
GoGeometry Action 13!
GoGeometry Action 15!
GoGeometry Action 16!
Cut-The-Knot Action 7!
GoGeometry Action 19!
Thales Action + Sequel = GoGeometry Action 25!
GoGeometry Action 26!
GoGeometry Action 48!
GoGeometry Action 49!
GoGeometry Action 50!
GoGeometry Action 52!
60-Degree Sector Surprise! (GoGeometry Action 55)
Neusis Logic Action = GoGeometry Action 56!
Quarter Circle Surprise!
GoGeometry Action 59!
GoGeometry Action 61!
GoGeometry Action 62!
GoGeometry Action 70!
GoGeometry Action 72!
Geometric Mean Madness! (GoGeometry Action 84)
Mickey Mouse Theorem! (Cut-the-Knot Action 16)
More Geometric Mean Action! (GoGeometry Action 86)
GoGeometry Action 87!
GoGeometry Action 92!
A Stronger Conclusion!
GoGeometry Action 100!
GoGeometry Action 122!
GoGeometry Action 128!
Next
Congruent Circles: Definition
New Resources
What is an Isogonal Conjugate?
Graphing Logarithmic Functions
bearing HK
aperiodic monotile construction_step by step
Shade a spheric triangle with "surface".
Discover Resources
Nine Point Circle
DonaPLDV3
Exact Values on the Unit Circle (radians)
Archimedes Pi
self similar
Discover Topics
Arithmetic
Planes
Definite Integral
Kite
Expected Value
