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

Theorem 20 Tangent perpendicular to radius

Author:Ronan Downes, James McGuinness
Theorem 20

New Resources

  • Writing and Graphing Proportional Relationships (k>0)
  • Squares Question
  • 繪畫垂直線
  • GeoGebra 3D Modeling Workshop (March 8 2024)
  • Pythagorean Theorem: Quick Illustrator

Discover Resources

  • looking at ab value
  • simplifying
  • Dilations Shape 2
  • Jose Malonzo Per. 2 geometric means
  • Proj

Discover Topics

  • Isosceles Triangles
  • Calculus
  • Conic Sections
  • Rational Numbers
  • Addition
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®