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Triangle Exploration
Author:
Patrick Lindsey
GeoGebra
New Resources
Flip Flop
What is an Isogonal Conjugate?
Shade a spheric triangle with "surface".
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Blancmange curve (fractal)
Discover Resources
Triangular Pyramid
Modspar 2014
The 9 Point Circle
等弦則等弦心距
Anthony valentines card
Discover Topics
Coordinates
Intersection
Natural Numbers
Kite
Geometric Transformations