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

Proof Without Words

Author:Alessio Raimondi, Steve Phelps
Drag the points. What does this prove? How does it prove it?

New Resources

  • Proving Triangles Similar by Dilation
  • Position Vector and Derivative Vector
  • How to Draw a Cube in 2D
  • Inversión esférica de nudos: el nudo trébol y el nudo ocho
  • Angle Bisector: Quick Warm Up Questions

Discover Resources

  • Representing All 6 Trig Functions Pictorially
  • Graphs of rational functions
  • Page 16 constructions
  • Equation of a circle
  • Patterns of a cube

Discover Topics

  • Calculus
  • Sphere
  • Similar Triangles
  • Distributions
  • Arithmetic Mean
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®