Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Triangle Theorems
    1. Triangle Sum Theorem
    2. Right Triangles
    3. Isosceles Triangles
    4. Triangle Inequality Theorem
    5. Exterior Angle Theorem

Triangle Theorems

Author:William Rodgers
This book includes several theorems that are important for understanding triangles. Use each applet to discover rules about a triangles angles and sides.

  • Triangle Sum Theorem

  • Right Triangles

  • Isosceles Triangles

  • Triangle Inequality Theorem

  • Exterior Angle Theorem

Next
Triangle Sum Theorem

New Resources

  • z`]]
  • Riemann Sums
  • Combining Random Variables
  • Slope Between 2 Points (Phase 2)
  • Transforming Random Variables

Discover Resources

  • Topics in Modern Math
  • Exterior angle sum of a irregular polygon amended
  • Taylor polynomials
  • Face
  • Untitled
  • Jaring-jaring Kubus

Discover Topics

  • Sine
  • Integers
  • Mathematics
  • Combinatorics
  • Trigonometric Functions
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

© 2025 GeoGebra®