Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

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

    • Parabola - Write the Equation - Practice
    • Parallel Lines and Angles: Thinking Classroom Exploration
    • Proving Triangles Similar: Multistep Transformations
    • Tangent Plane to a Sphere
    • Right Triangle Trig Ratios: sin, cos, tan

    Discover Resources

    • Embedded graph grid for question papers
    • MATS3210-2 Symmetries and Transformations
    • Circumscribed Circle
    • pointsurcercle
    • bedömningsgrejen

    Discover Topics

    • Pythagoras or Pythagorean Theorem
    • Set Theory
    • Linear Equations
    • Arithmetic
    • Volume
    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®