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Equilateral Triangle Symmetries
Author:
David George
GeoGebra
New Resources
探究由平行線和截線所成的角
Parallelograms: Quick Investigation
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Exploring the Derivative of an Exponential Function
What is an Isogonal Conjugate?
Discover Resources
Area v. Perim for Quads and Tris
P-Value
Darstellungsmatrizen - Basiswechsel und Abbildung
Q2c. horizontal tangent to f(x)=2 sin(x) - x at x=pi/3
CENTROID & ORTHOCENTRE OF A TRIANGLE
Discover Topics
Continuity
Pie Chart or Circle Chart
Random Experiments
Vectors 3D (Three-Dimensional)
Isosceles Triangles