Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Opposite angles in a cyclic quadrilateral

Author:ray.c.carpenter
Topic:Angles
Opposite angles in a cyclic quadrilateral add up to 180°.

New Resources

  • Angle Addition Postulate (V2) - Integer Solutions
  • Probabilities with Two-Way Tables
  • Rotating Custom Polygons Around an Axis
  • Right Triangle Inscribed in a Semicircle
  • 繪畫垂直線

Discover Resources

  • Move another kind of hexagon
  • Construct a 90 degree angle
  • Exercício1_Pennini_9B
  • Унакрсни и упоредни углови
  • Rainbow sunflower

Discover Topics

  • Centroid or Barycenter
  • Trigonometry
  • Logic
  • Straight Lines
  • Integral Calculus
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®