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

#1 Proof Without Words

Author:Hasan Bey, Steve Phelps
Topic:Geometry, Pythagoras or Pythagorean Theorem
Drag the points in the sketch below.

What do you notice? What does this prove? How does this prove it?

New Resources

  • Reflection Across 2 Parallel Lines
  • Circle Passing Through 3 Points
  • Volume by Disk/Washer around y
  • Pitfalls of Disk/Washer Method
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

  • Finding the Roots of a Quadratic Equation
  • Corresponding Angles In Paralel lines
  • solving2
  • Images 1. Polyhedron(V=120) from Biscribed Pentakis Dodecahedron for the case of trisection of its 5th-order segments
  • Parent Function Transformations

Discover Topics

  • Conic Sections
  • Logarithmic Functions
  • Parametric Curves
  • Ratios
  • Mathematics
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®