GeoGebra
  • Create Lesson
GeoGebra
  • Home
  • News Feed
  • Resources
  • Profile
  • People
  • Classroom
  • App Downloads
About GeoGebra
Contact us: office@geogebra.org
Terms of Service – Privacy – License

© 2022 GeoGebra

Sum of Interior Angles

Author:
Mr. De Hoyos
Topic:
Angles

Theorem: The sum of the interior-angles of a triangle equals 180 degrees.

New Resources

  • Organic Ellipse
  • Multipurpose 20 Frame Randomizer
  • Forming Rectangles with Squares
  • Euler's Formula
  • Range and Domain

Discover Resources

  • feb4
  • mama G
  • Reciprocal Function - Sign (+/-)
  • Max Bill by Daria G
  • Cross Section Example

Discover Topics

  • Sequences and Series
  • Tangent Function
  • Trapezoid
  • Geometric Mean
  • Frequency Distribution

GeoGebra

  • About
  • Partners
  • GeoGebra on Tests
  • News Feed
  • App Downloads

Apps

  • Calculator Suite
  • Graphing Calculator
  • 3D Calculator
  • CAS Calculator
  • Scientific Calculator

Resources

  • Classroom Resources
  • Learn GeoGebra
  • Classroom
  • Geometry
  • Notes
  • Terms of Service Privacy License
  • Facebook Twitter YouTube