Search
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

The sum of a triangle's angles is 180 degrees

Author:qhaughey
Topic:Angles, Triangles
This Geogebra sketch is an explanation of how to prove that the sum of a triangle's angles is 180 degrees. It was created by Quinn Haughey at Animas High School.

New Resources

  • အခြေခံ data အခေါ်အဝေါ်များ
  • רישום חופשי
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • seo tool
  • Limaçons

Discover Resources

  • Multiplication of complex numbers - part 2
  • Younes
  • ABSOLUTE-VALUE-RECIPROCAL-FUNCTIONS
  • page 143 Emily Shaughnessy
  • Untitled
  • Спираль Фибоначчи

Discover Topics

  • Function Graph
  • Kite
  • Stochastic Process or Random Process
  • Line Segment
  • Sphere
AboutPartnersHelp Centre
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2025 GeoGebra®