Search
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Eratosthenes Earth

Author:cpkear
Image
5,000 stadia = about 500 miles
His error would have been less than 2 percent off the actual Earth’s circumference of 24,860 miles

New Resources

  • רישום חופשי
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • Tracing an Ellipse Using Two Circles
  • The Geometry of the Coefficients of a Quadratic Function
  • Graph of Slopes of Tangent Lines

Discover Resources

  • where to put foci
  • renvoi
  • Alternate Definition of the Derivative
  • Construction: Locus of |z1-w|=|z2-w|
  • Surrounding Triangles and the Pythagorean Theorem
  • jfdalfkdjl

Discover Topics

  • Variance
  • Square
  • Ratios
  • Inequalities
  • Limits
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®