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

Aristarchos' half moon

Author:A. G. Gomez (agg29@ou.ac.uk)
Illustration of Gomez's VA theory on the origin of Aristarchos' 87° angle.

New Resources

  • Billard V5.2 and V6
  • 兩位數的位值
  • Visualizing the Pythagorean Identity with Sine and Cosine
  • Average Value
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

  • Vektoreiden välinen kulma
  • SSA Not congruent
  • Bisect a segment
  • test2018cutLine_v2
  • Parabola in Vertex Form

Discover Topics

  • Plane Figures or Shapes
  • Upper and Lower Sum or Riemann Sum
  • Set Theory
  • Distributions
  • Fractal Geometry
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®