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Proof that the opposite angles in a cyclic quadrilateral sum to 180°
Author:
Ben Rooney
Topic:
Angles
GeoGebra
New Resources
Rings of circles
Chaotic behaviour
Exploring Simple Loci 探究簡單軌跡
探究由平行線和截線所成的角
Kopie von parabel - parabol
Discover Resources
eulars line not hidden
sequence of polygons
Geo 1.1
Venn to Tree
CORRESPONDING ANGLES ARE SAME
Discover Topics
Constructions
Standard Deviation
Linear Regression
Random Experiments
Subtraction