Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Circle Theorems
    1. Circle Theorems

    Circle Theorems

    Author:gcrtaylor
    Topic:Angles, Circle

    Circle Theorems

    Each theorem presented so generalisations can be made

    • Angle at centre is twice angle at circumference

    • Circle Theorem - Angle at the circumference from diameter

    • Tangent to Radius

    • Angles from same chord are equal

    • Cyclic Quadrilateral

    Next
    Angle at centre is twice angle at circumference

    New Resources

    • Proving Triangles Similar by Dilation
    • seo tool
    • Parabola - Write the Equation - Practice
    • Portions of a Sphere
    • z`]]

    Discover Resources

    • HASIERAKOA
    • Angle Properties of Regular Polygons
    • meetlat
    • euclid_el_06_ιζ
    • Vectors: Example 2
    • Turning a Tesseract

    Discover Topics

    • Planes
    • Mode
    • Surface
    • Circumcircle or Circumscribed Circle
    • Probability
    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®