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

© 2023 GeoGebra

Cosine Double Angle Formulae - Geometric Proof

Author:
dayriderbusking
Topic:
Cosine

New Resources

  • Open Middle Cyclic Quadrilateral Exercise
  • Paradoxes on π
  • Arc Length and Sector Area
  • Which Area is Larger?
  • Open Middle: Graphing Linear Inequalities (1)

Discover Resources

  • Sofia Gomez and Vanessa Jean B
  • Playing with Amplitude And Period
  • Pythagorean Theorem using real-world related problem
  • blahh
  • Trabajo Práctico N* 14 Ejercicio N* 5 SORIA JOSÉ 2do 2da

Discover Topics

  • Vectors
  • Matrices
  • Poisson Distribution
  • Rhombus
  • 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