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GeoGebra
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Focus-Directrix Definition of an Ellipse
Author:
Norm Prokup
Topic:
Ellipse
GeoGebra
New Resources
Stairs (Optical Illusion)
Simplifying Radicals: Geometric Thin Slice
Construct a Square
Parallel or Not? (V2)
Piano. Keyboard.
Discover Resources
Quadrilateral Inscribed in Circle, LBS
Area of a Parallelogram
คลี่กรวย
Systems Graphing Tool
Measure the Radius
Discover Topics
Derivative
Circumcircle or Circumscribed Circle
Parametric Curves
Percentages
Rotation