GeoGebra
  • Create Lesson
GeoGebra
  • Triangle Theorems

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

  • Open Middle: Horizontal and Vertical Distances (V1)
  • Operator norm calculator
  • Bar Graph
  • Forming Rectangles with Squares
  • A1_4.04 Two variable linear inequalities 278287_a

Discover Resources

  • November 10
  • เรือน้อยฝ่ามรสุม
  • Quizzes For Google Classroom
  • Math1023 - week 8, lecture 2, graph 1
  • Drawing a shapes

Discover Topics

  • Random Variables
  • Means
  • Arithmetic Operations
  • Centroid or Barycenter
  • Reflection

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