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Eccentricity and directrix of an ellipse
Author:
Jonathan Holland
Topic:
Ellipse
GeoGebra
New Resources
Perimeter of a Rectangle with Unknown Sides
Parallel Lines and Angles: Thinking Classroom Exploration
AI for Math Teachers (prompt examples)
Tracing an Ellipse Using Two Circles
巧算長方形周界
Discover Resources
The Intermediate Value Theorem
true/triangle-medians.ggb
Circles - Equation of a circle
Tech Final Part 1
Images 1. Truncated icosidodecahedron (V=120) from Biscribed Pentakis Dodecahedron for the case of trisection of its 4th-order segments
Discover Topics
Secant Line or Secant
Equilateral Triangles
Terms
Parabola
Similarity Transformation or Similarity