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

  • רישום חופשי
  • Perpendicular Lines: Quick Exploration
  • Linear Equation Graphs: Thin Slice
  • z`]]
  • Odd Function Explorer

Discover Resources

  • SENAT
  • Center of Mass of a System of Point Masses
  • IntersectError
  • Forum_35947_A_InputBoxWithout
  • Sign 1
  • Unit 8 Geogebra Sketch
  • SSA Triangles

Discover Topics

  • Linear Regression
  • Step Functions
  • Bar Chart or Bar Graph
  • Surface
  • Hypergeometric Distribution
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®