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

Proof Without Words

Author:Steve Phelps
Topic:Pythagoras or Pythagorean Theorem, Right Triangles
Drag the points. What does this prove? How does this prove?

New Resources

  • Pythagorean Theorem: Quick Illustrator
  • Squares Question
  • Linear Equation Graphs: Thin Slice
  • What Do You See?
  • Function art 3D - waiting shed

Discover Resources

  • Angle at the centre (page 3)
  • GeoGebra Project One
  • Orthocenter (& Questions)
  • Electrostatic Force due to Four charges at a single Charge
  • sushi

Discover Topics

  • Circumcircle or Circumscribed Circle
  • Volume
  • Plane Figures or Shapes
  • Geometric Mean
  • LCM and GCD
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®