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

© 2022 GeoGebra

A Stronger Conclusion!

Author:
Tim Brzezinski
Topic:
Circle, Tangent Line or Tangent
This applet is a follow-up to this Internal + External Tangents Action applet. How can you formally prove what this applet informally illustrates?

New Resources

  • Tutorial RDWorks para iniciantes (em inglês)
  • Water Molecule
  • Würfel mit Netz
  • Open Middle: Linear Function to Cone
  • Open Middle: Horizontal and Vertical Distances (V1)

Discover Resources

  • poursuite1
  • Change of Variables
  • Theorems Part 1
  • Angle Formed by Chord & Tangent
  • sin(x^2/4) from sin(x)

Discover Topics

  • Arithmetic Operations
  • Arithmetic
  • Dilation
  • Intersection
  • Random Experiments

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