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

Aristarchos' shadow enlargement

Author:A. G. Gomez (agg29@ou.ac.uk)
Illustration of Earth shadow enlargement during Moon eclipses

New Resources

  • Perimeter of a Rectangle with Unknown Sides
  • Assistants (custom GPTs or Gemini Gems) for Math
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • The Coordinate Plane (Cartesian Plane)
  • AI for worksheet development

Discover Resources

  • cubic
  • binomiale approximation
  • משפט פיתגורס
  • Perpendicular bisector
  • mountain
  • Cópia de Migrating from PCK to TPACK

Discover Topics

  • Complex Numbers
  • Symmetry
  • Rational Numbers
  • Cylinder
  • Right Triangles
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®