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

  • Untitled
  • Function art 3D - waiting shed (v2)
  • Pythagorean Theorem: Quick Illustrator
  • רישום חופשי
  • Squares Question

Discover Resources

  • forum
  • Differentiation
  • Transforming Functions
  • ತ್ರಿಭುಜಗಳಲ್ಲಿ ಬಾಹುಗಳು ಮತ್ತು ಕೋನಗಳ ಸಂಬಂಧ
  • Slope Coefficient of x

Discover Topics

  • Scalene Triangles
  • Algebra
  • Arithmetic Operations
  • Cylinder
  • Planes
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®