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Feuerbach theorem - minimal construction
Author:
Thierry Dana-Picard
Topic:
Geometry
GeoGebra
The 9-point circle is in red (not all the 9 points have been constructed). The 4 circles tangent to the 3 sides of the triangle are in orange.
New Resources
Pythagorean theorem illustration 2
Level Curves and Contour Maps
Quotation marks
TNB Frame
GeoGebra Script: Rotating circles
Discover Resources
Mystic Rose and Handshakes
Finding Limits Numerically
Turtle
segment copied
HamlatzaPartD2d
Discover Topics
Tree Diagrams
Quadrilaterals
Tangent Function
Triangles
Stochastic Process or Random Process