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

Proof Without Words

Author:Steve Phelps
Topic:Pythagoras or Pythagorean Theorem
Drag the points below. What does this prove? How does this prove it?

New Resources

  • Angle Bisector: Quick Warm Up Questions
  • Perimeter of a Rectangle with Unknown Sides
  • ANGLE
  • Text with alpha background color
  • Parallel Lines and Angles: Thinking Classroom Exploration

Discover Resources

  • tangent-at-a point-2
  • Locate Points
  • Angles to Sides in Triangles
  • Working with Centroids
  • Test

Discover Topics

  • Geometric Mean
  • Fractions
  • Parallelogram
  • Similar Triangles
  • Geometry
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®