Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Ellipse: proof of the equivalence of its definitions

Author:Luca Moroni
Topic:Ellipse
Ellipse: geometric proof of the equivalence of two definitions more info at this page: http://www.lucamoroni.it/ellipse-geometric-proof-equivalent-definitions-foci-directrix/

New Resources

  • Graph of Slopes of Tangent Lines
  • z`]]
  • רישום חופשי
  • The Geometry of the Coefficients of a Quadratic Function
  • Sum of Squares: Proof without Words

Discover Resources

  • Input_Box_Ctrl_E
  • Andrew's First Applet
  • Complex Numbers and Transformations
  • Stick Figure
  • Rotating Squares - a geometric perspective

Discover Topics

  • Continuity
  • Statistical Characteristics
  • Real Numbers
  • Derivative
  • Median Line
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®