Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Circle Theorems
    1. Alternate Segment Theorem (proof)
    2. Alternate Segment Theorem (page 2)
    3. Alternate Segment Theorem (page 1)
    4. Angle in a semi-circle
    5. Simple Angle at the Centre
    6. Angle at the centre (page 2)
    7. Angle at the centre (page 3)
    8. Common Tangents to a Circle (Proof)

Circle Theorems

Author:Chris Luke
Topic:Circle
Circle theorems for GCSE

  • Alternate Segment Theorem (proof)

  • Alternate Segment Theorem (page 2)

  • Alternate Segment Theorem (page 1)

  • Angle in a semi-circle

  • Simple Angle at the Centre

  • Angle at the centre (page 2)

  • Angle at the centre (page 3)

  • Common Tangents to a Circle (Proof)

Next
Alternate Segment Theorem (proof)

New Resources

  • רישום חופשי
  • apec
  • Damped Trochoidal Curve
  • Publish app "Public" test
  • Rose Curve

Discover Resources

  • Inscribed Angle Intercepts Semicircle
  • Bisectoare
  • Trapezoid (d)copy

Discover Topics

  • Geometry
  • Frequency Distribution
  • Upper and Lower Sum or Riemann Sum
  • Vectors
  • Exponent
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®