Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson

Outline

  1. Circle Geometry Theorems
    1. Angle in a semi-circle
    2. Angles subtended by the same arc
    3. Angle between a tangent and a chord
    4. Angle at the centre
    5. Radius-tangent
    6. Tangents from an external point

Circle Geometry Theorems

Author:David Hemer
Topic:Circle, Geometry

  • Angle in a semi-circle

  • Angles subtended by the same arc

  • Angle between a tangent and a chord

  • Angle at the centre

  • Radius-tangent

  • Tangents from an external point

Next
Angle in a semi-circle

New Resources

  • Midpoint Theorem (V2): Integer Solutions
  • End Behavior of Polynomial Functions
  • Odd Function Explorer
  • Marion's Theorem
  • Angle Addition Postulate (V2) - Integer Solutions

Discover Resources

  • Day 15
  • Reflections
  • Angle Measure Alternate Interior
  • h18n8
  • Funny Face, Amelie GER

Discover Topics

  • Linear Functions
  • Interest Calculation
  • Pyramid
  • Power Functions
  • Root
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®