Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson

Outline

  1. Circle Theorem Investigations
    1. Investigate
    2. Prove
    3. Secants and Tangents

    Circle Theorem Investigations

    Author:John Williams
    Topic:Circle
    Circle Theorem Investigations

    Table of Contents

    • Investigate

      • Inscribed Angle Theorem (V1)
      • Inscribed Angle Theorem: Corollary 1
      • Copy of Animation 20 (Inscribed Angle Dance)
      • Copy of Thales' Theorem (VA)
    • Prove

      • Proof Exercise: Inscribed Angle Theorem (Case 1)
      • Proof Exercise: Inscribed Angle Theorem (Case 2)
      • Proof Exercise: Inscribed Angle Theorem (Case 3)
    • Secants and Tangents

      • Copy of Angles from Secants & Tangents (V1)
    Next
    Inscribed Angle Theorem (V1)

    New Resources

    • Slope Illustrator (2)
    • GeoGebra 3D Modeling Workshop (March 8 2024)
    • Segment Addition Postulate (Mild Questions)
    • Odd Function Explorer
    • Congruent Figures

    Discover Resources

    • Dominio
    • GIVKirby
    • Polygons in polygons
    • Invariant Properties of Circles
    • Circumcenter

    Discover Topics

    • Addition
    • Arithmetic Mean
    • Sequences and Series
    • Diagrams
    • Division
    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®