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

  • Model sferyczny - dwunastościan-dwudziestościan
  • Angle Addition: Warm Up Exercises
  • Cartesian vs Polar
  • အခြေခံ data အခေါ်အဝေါ်များ
  • רישום חופשי

Discover Resources

  • Theorem 16 - Base times Height in a Triangle
  • cos(a-b)NL
  • quadrilateral (geostrip)
  • Circle theorems
  • lanciatore palline
  • Sophie_Mantsch_Qtr1project_O1

Discover Topics

  • Arithmetic Mean
  • Confidence Interval
  • Indefinite Integral
  • Quadratic Functions
  • Function Graph
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®