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2/3 orthocenter?
Author:
Courtney Guthrie
GeoGebra
New Resources
Isosceles Triangle: Quick Construction
A retro cityscape with mathematics
Drag that Point!
Introduction
Slope of a Straight Line: Run and Rise
Discover Resources
Construct the Centroid 2
Configuration- and Shapespace of Triangles
Construction Model of the Cloyne Harp
First criterion of congruence SAS
Operation on Sets by VENN Diagram
Discover Topics
Fractal Geometry
Confidence Interval
Set Theory
Orthocenter
Curve Sketching