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

  • רישום חופשי
  • seo tool
  • apec
  • Average Value
  • အခြေခံ data အခေါ်အဝေါ်များ

Discover Resources

  • Table_Sin_Cos_Tan
  • Conic Equations
  • Cournot Duopoly - Elimination
  • Exercise C question 16
  • Car on a Hill Fuel Economy (Calculus)
  • Example 11.7.3

Discover Topics

  • Pie Chart or Circle Chart
  • Congruence
  • Normal Distribution
  • Cube
  • Interest Calculation
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

© 2026 GeoGebra®