Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Circle Theorem: angle at the centre

Author:Robert Chaney
Topic:Angles, Circle
Move the points C and D around. What do you notice?

New Resources

  • How to Draw a Cube in 2D
  • Right Triangle Trig Ratios: sin, cos, tan
  • Position Vector and Derivative Vector
  • bewijs stelling van Pythagoras
  • Parabola - Write the Equation - Practice

Discover Resources

  • Compare Circular Fractions Activity
  • Translation_grid2
  • Horizontal Compression
  • สามเหลี่ยมพีทาโกรัส
  • Crossectiontest

Discover Topics

  • Perimeter
  • Difference and Slope
  • Stochastic Process or Random Process
  • Polynomial Functions
  • Mode
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®