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

Tangents from an external point are equal in length.

Author:
John Tranter
Topic:
Circle, Geometry
Drag the point where the tangents meet to see how their lengths compare.

New Resources

  • Minimalist Chair
  • Polygon Angles: Quick Thin Slice Explorations
  • Dilations Part 3: What Do You Notice?
  • Building Similar Triangles V2
  • Linear Function to Bowl or Cup

Discover Resources

  • Classwork 7.5B Ryan McKinney
  • Quadratic graph in vertex form
  • Construction 4 of Alternate Angle Theorem
  • Binomial distributions - large trials
  • Moje telo... razmerja, sin

Discover Topics

  • Hyperbola
  • Pythagoras or Pythagorean Theorem
  • Geometric Mean
  • Scatter Plot
  • Orthocenter

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