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

Cosine rule & Pythagoras' Theorem

Author:
shanlee
Topic:
Cosine, Pythagoras or Pythagorean Theorem
Drag the RED point to create an non-right angle triangle. How does the COSINE rule extend Pythagoras' theorem to describe non-right angle triangles? (Tick the box to see the Working).

New Resources

  • G_7.02 Similarity transformations
  • What is a Radian?
  • G_3.01 Triangles and angles
  • G_3.01 Triangles and angles_2
  • نسبت پاره خط ها

Discover Resources

  • What's the angle?
  • Linear Graph
  • Type in the answer app template
  • Schaffer_TestingSimiliarityTheoremsHW
  • Universe

Discover Topics

  • Real Numbers
  • Volume
  • Sequences and Series
  • Difference and Slope
  • Equations

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