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General Focus Directrix For Conics
Author:
Gary Rubinstein
GeoGebra
New Resources
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Poorly Drawn Parallelograms 3
Average Rate of Change: Graph a Function (2)
Icosahedron1
Variation Theory Parallelogram Proofs
Discover Resources
Example 3
A pattern of triangles
Comparing Angles
Triangle Similarity 3/21
square the circle
Discover Topics
Standard Deviation
Circumcircle or Circumscribed Circle
Median Value
Exponent
Right Triangles