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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
Graphing Logarithmic Functions
Chaotic behaviour
Road Runner (beep, beep)
Droste effect
Shade a spheric triangle with "surface".
Discover Resources
Mystic Rose and Handshakes
portfolio
TR (KAY) - Μέγιστος όγκος (άσκηση)
Can you change
Coloreando el mapa
Discover Topics
Special Points
Quadrilaterals
Tree Diagrams
Functions
Algebra