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Wallace-Simson Line, Orthopole, and Deltoid
Author:
Steve Phelps
Wallace-Simson Line
GeoGebra
The Orthopole
GeoGebra
All together now...
GeoGebra
New Resources
Droste effect
Exploring the Derivative of an Exponential Function
Road Runner (beep, beep)
What is an Isogonal Conjugate?
Shade a spheric triangle with "surface".
Discover Resources
Relaţia lui Sylvester
endPointsIntervals
Animation 68
Angle Addition (Values Shown)
Section 4.6
Discover Topics
Fractal Geometry
Standard Deviation
Inequalities
Perimeter
Isosceles Triangles