Search

Google Classroom

GeoGebra Classroom

Home
Resources
Profile
Classroom
App Downloads

Sum of the angles of a triangle is not always 180°

Author:Daniel Mentrard

Topic:Angles, Geometry

New Resources

GGB is Awesome!
Area Between Two Curves
bewijs stelling van Pythagoras
Select an object for a time to start a command. Light
Tetrahedron String Art

Discover Resources

Euclid's Fifth Postulate
addition
graphs and patterns with 10 mat/maa
ChristineHa_11MAD

Discover Topics

Special Points
General Quadrilateral
Congruence
Division
Trapezoid

About Partners Help Center

Terms of Service Privacy License

Graphing Calculator Calculator Suite Math Resources

Download our apps here:

© 2026 GeoGebra®