Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Geometrical Properties in a Circle
    1. Definitions
    2. Property 1
    3. Property 2
    4. Property 3
    5. Cyclic Quadrilaterals
    6. Tangents to the circle
    7. Symmetrical Properties

    Geometrical Properties in a Circle

    Author:ctc
    Topic:Circle
    Geometrical Properties in a Circle

    Table of Contents

    • Definitions

      • Parts of a Circle
      • Types of angles and arcs
    • Property 1

      • Angles at centre and circumference
    • Property 2

      • Angles in a semi-circle
    • Property 3

      • Angles in the same segment
    • Cyclic Quadrilaterals

      • Opposite angles in Cyclic Quad
      • Exterior angles of a Cyclic Quadrilateral
    • Tangents to the circle

      • Secants vs Tangents
      • Tangent and Radius
      • Alternate Segment theorem (Tangent-Chord theorem)
      • Two Tangents from an External Point
    • Symmetrical Properties

      • Line of symmetry for a triangle
      • Symmetrical Property 1
      • Symmetrical Property 2
    Next
    Parts of a Circle

    New Resources

    • Shells
    • Reflection Across 2 Parallel Lines
    • רישום חופשי
    • Volume by Shells Around y
    • Reflection across a line

    Discover Resources

    • Area of Circles
    • The Fibonacci Spiral
    • Basic Quadratics
    • Rette linjer 7.4.1
    • Line and plane 3

    Discover Topics

    • Linear Functions
    • Vectors
    • Geometric Transformations
    • Parametric Curves
    • Geometric 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®