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

Proof Without Words

Author:Steve Phelps
Drag the green and blue points. Drag the slider. What does this prove? How does it prove it?

New Resources

  • Writing and Graphing Proportional Relationships (k>0)
  • Squaring a Rectangle (PST Version)
  • Conditional Probability in Two-Way Tables
  • Identifying Solids Formed by Rotation
  • Segment Addition Postulate (Mild Questions)

Discover Resources

  • Simplii vs Mitel
  • IDEK
  • Medial triangle
  • LZ 8.8.7.4c Transformational Pythagorean Theorem Proof 3
  • The Binomial Expansion: A Geometric Representation

Discover Topics

  • Tangent Function
  • Median Value
  • Sequences and Series
  • Orthocenter
  • Conditional Probability
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®