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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
Parabolas, Lines and Nomograms
希尔伯特曲线
Right Triangle Inscribed in a Semicircle
Quadrant Illustrator 2
Function art 3D - waiting shed (v2)
Discover Resources
graph of a cubic function in different forms
Transformations of Graphs
Quiz4
Roll the Dice
global look
Discover Topics
Geometric Mean
Variance
Square
Diagrams
Line Segment