Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Circle theorems
    1. Circle Theorem 4: Tangent and Radius
    2. Isosceles Triangle in a Circle (page 1)
    3. Angle in a semi-circle
    4. Common Tangents to a Circle
    5. Common Tangents to a Circle (Proof)

Circle theorems

Author:Jonathan Jackson
Topic:Circle

  • Circle Theorem 4: Tangent and Radius

  • Isosceles Triangle in a Circle (page 1)

  • Angle in a semi-circle

  • Common Tangents to a Circle

  • Common Tangents to a Circle (Proof)

Next
Circle Theorem 4: Tangent and Radius

New Resources

  • Random Polar Curve (1)
  • Limaçons
  • Open Education 2026
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • The Coordinate Plane (Cartesian Plane)

Discover Resources

  • perpendicular and parallel lines
  • Qutob Math 1 - Triangle Midsegment Investigation
  • Reflex Angles
  • สื่อการสอน เรื่อง สมการเชิงเส้นตัวแปรเดียว
  • HF2d

Discover Topics

  • Means
  • Pyramid
  • Rhombus
  • Equations
  • Statistics
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®