Search
Google 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

  • Polar Coordinates Book
  • 分數化百分數:練習
  • Involute of the Circle
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • Tangent in Cartesian and Polar Coordinates

Discover Resources

  • locusEquationError
  • Гурвалжин
  • famtri
  • Geometric Sequences Fill The Gaps II
  • Quiz: Adding and Subtracting Integers
  • Helicoptero

Discover Topics

  • Expected Value
  • Arithmetic Mean
  • Rhombus
  • Parallelogram
  • Percentages
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®