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Incircle, Excircles, and the 9-Point Circle
Author:
Steve Phelps
Topic:
Circle
,
Circumcircle or Circumscribed Circle
,
Incircle or Inscribed Circle
,
Triangles
There are four circles tangent to three sides of a triangle...
GeoGebra
And one circle tangent to all four circles.
GeoGebra
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van Aubel's Theorem
Piano. Keyboard.
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Multiplying Mixed Numbers
Rectangle prism movable for real
perpendicular
Units and Tens - Visualisation
The Unit Circle (Part 2): IM Alg2.6.4
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Hyperbola
Equilateral Triangles
Linear Regression
Similarity Transformation or Similarity
Definite Integral