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The Equifacial Tetrahedron
Author:
Steve Phelps
An equifacial tetrahedron has four faces of equal area.
GeoGebra
New Resources
Icosahedron
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Variation Theory Parallelogram Proofs
alg2_05_05_01_applet_exp_2_flvs
Shadow of a Cube
Discover Resources
Regular Hexagon
bean
Hhkg 90.3
Triangle diamond serena
sine and cosine ratios
Discover Topics
Parabola
Normal Distribution
Area
Geometric Distribution
General Quadrilateral