GeoGebra
GeoGebra
  • Home
  • News Feed
  • Resources
  • Profile
  • People
  • Classroom
  • App Downloads
About GeoGebra
Contact us: office@geogebra.org
Terms of Service – Privacy – License

© 2023 GeoGebra

Aristarchos' shadow enlargement

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

New Resources

  • Ball Structure
  • Exploring Dilations
  • Graphing Sinusoidial Functions (All Transformations)
  • Points Visible from Origin
  • SAS Similarity Theorem: Exploration

Discover Resources

  • sin(x)/x
  • Trig in the unit circle ~ Reference Angles and Symmetry
  • Stewart 7th Chapter 13 Problems Plus 1
  • L1.12
  • Pythogoras Theorem

Discover Topics

  • Boxplot
  • Means
  • Definite Integral
  • Pythagoras or Pythagorean Theorem
  • Triangles

GeoGebra

  • About
  • Partners
  • GeoGebra on Tests
  • News Feed
  • App Downloads

Apps

  • Calculator Suite
  • Graphing Calculator
  • 3D Calculator
  • CAS Calculator
  • Scientific Calculator

Resources

  • Classroom Resources
  • Learn GeoGebra
  • Classroom
  • Geometry
  • Notes
  • Terms of Service Privacy License
  • Facebook Twitter YouTube