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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
New Resources
The Cosine Formula - Proof Without Words
רישום חופשי
Domino Chain Reaction
Science Park 1
The black friday GeoGebra :)
Discover Resources
Chapter 1.5 Parking Spaces
diagonals of a rectangle
Perbandingan
Geo PS 19 #5
Discover Topics
Logic
Reflection
Centroid or Barycenter
Conic Sections
Constructions