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Circle theorem: opposite angles in a cyclic quadrilateral
Author:
Ania Maxwell
Topic:
Angles
,
Circle
GeoGebra
New Resources
bewijs stelling van Pythagoras
Exploring GeoGebra for the First Time
Reflection across a line
Reflection = 180° Rotation about a Line
Circle Passing Through 3 Points
Discover Resources
Claire Geogebra sketch
Start
Rotation Exploration (F shape 1)
Hyperbola defined as a set of points
Discover Topics
Incircle or Inscribed Circle
Arithmetic
Unit Circle
Vectors
Complex Numbers