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

Circle_Theorem1

Author:
Stephen Ferguson
Angles on the same segment are always equal. Here, the angle is 67 degrees.

New Resources

  • Curry's Paradox 3!
  • Exploring Dilations
  • Slopes of Parallel and Perpendicular Lines - Discovery & Assessment: Quick Demo
  • Dilations Part 3: What Do You Notice?
  • Dilations Part 2: What Do You Notice?

Discover Resources

  • general
  • T2 ex 21 page 128
  • The Discriminant
  • house project p.2 5/12/16
  • '...in a square'

Discover Topics

  • Trapezoid
  • Numbers
  • LCM and GCD
  • Function Graph
  • Geometric Distribution

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