Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Circle Theorems
    1. Angle at the centre
    2. Angles in the same segment
    3. Angle in a semicircle
    4. Cyclic quadrilaterals
    5. Alternate Segment
    6. Chord bisector
    7. Tangent and radius
    8. Tangent lengths

Circle Theorems

Author:Ben Sparks
Topic:Circle
All 8 circle theorems discussed at GCSE maths. Interactive.

  • Angle at the centre

  • Angles in the same segment

  • Angle in a semicircle

  • Cyclic quadrilaterals

  • Alternate Segment

  • Chord bisector

  • Tangent and radius

  • Tangent lengths

Next
Angle at the centre

New Resources

  • Intercepts in 3D
  • Transformaciones usando coordenadas
  • רישום חופשי
  • 判斷錐體
  • Luxembourg Symbol

Discover Resources

  • condition of parallel and perpendicular lines
  • Investigation 2
  • Untitled
  • Horizontal Riemann Sum
  • Alexa

Discover Topics

  • Hypergeometric Distribution
  • Solids or 3D Shapes
  • Tree Diagrams
  • Cosine
  • Linear Regression
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

© 2025 GeoGebra®