Search

Google Classroom

GeoGebra Classroom

Home
Resources
Profile
Classroom
App Downloads

Triangle Numbers Proof Without Words

Author:John Brown

New Resources

Pitfalls of Disk/Washer Method
Exploring GeoGebra for the First Time
Circle Passing Through 3 Points
Volume by Disk/Washer around y
apec

Discover Resources

Transformations
Tortoise and Hare project
Visualization of Sine's Maclaurin Series
approximating sin(x) at pi/2
Open Middle: Building Rhombuses

Discover Topics

Differential Equation
Translation
Congruence
Plane Figures or Shapes
Right Triangles

About Partners Help Center

Terms of Service Privacy License

Graphing Calculator Calculator Suite Math Resources

Download our apps here:

© 2026 GeoGebra®