Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Circle Theorems
    1. Angle at the centre
    2. Angles in the same segment (animated)
    3. Cyclic quadrilateral
    4. Tangents to circle
    5. Radius and chord
    6. Alternate Segment Theorem

Circle Theorems

Author:Jonathan Longstaffe
Topic:Circle
The circle theorems

  • Angle at the centre

  • Angles in the same segment (animated)

  • Cyclic quadrilateral

  • Tangents to circle

  • Radius and chord

  • Alternate Segment Theorem

Next
Angle at the centre

New Resources

  • Midpoint Theorem (V2): Integer Solutions
  • Slope Illustrator (2)
  • Odd Function Explorer
  • Midpoint Theorem Questions: Mild
  • Rovnoběžnost rovin

Discover Resources

  • The Complex Squaring Function
  • Exploring complex multiplication
  • Useful: 1st Year Tutorials
  • String Art : Dynamic V12APre
  • TG Visualizing a System of Linear Equations

Discover Topics

  • Diagrams
  • Geometric Mean
  • Cuboid
  • Curve Sketching
  • Conditional Probability
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®