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Orthocenter
Author:
Ellie Krumsieg
GeoGebra
Orthocenter Construction
Construct any triangle ABC. Let lines be drawn through <ABC,<BCA, and <CAB such that each line is perpendicular to AC, AB, and BC respectively. The point on which these three lines intersect is the orthocenter.
New Resources
Parallel or Not? (V2)
Slope Field (1)
Drag that Point!
Rotating Points (Optical Illusion)
Introduction
Discover Resources
Simple Harmonic Motion Tutorial
Lissajous
Eulerren zuzena
EM 2015 P1 Q20
Type I and II Errors
Discover Topics
Logarithm
Surface
Scalene Triangles
Symmetry
Vectors 2D (Two-Dimensional)