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

Monge's Theorem

Author:
John Golden
Beautiful result about 3 circles in the plane. Easy to construct in GeoGebra since the tangent command can have two circles as an argument. Can you figure out if there are any conditions for when G, H and I are collinear? Part I of a request by @solvemymaths

New Resources

  • Starting GeoGebra: Quick Reference
  • Point of View
  • Midpoint Coordinates: Check for Understanding
  • Vertical Pairs and Linear Pairs
  • Philippine Abaniko

Discover Resources

  • Harmonograph (mechanical)
  • Unit 5 Geogebra Sketch
  • Unit 9 Rectangle
  • Maximizing Area
  • Triangle Coordinate Geometry

Discover Topics

  • Cone
  • Multiplication
  • Integral Calculus
  • Rectangle
  • Random Experiments

GeoGebra

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

Apps

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

Resources

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