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Cyclic Quadrilateral

 
Definition:
A quadrilateral is cyclic if it can be inscribed in a circle.
 

You can move the vertices of the given cyclic quadrilateral with pressed mouse button.

Opposite angles in a cyclic quadrilateral add up to 180°.
 

 
Mathematics
Mathematics Applets

URL: http://www.walter-fendt.de/m14e/cyclquadrilat.htm
© Walter Fendt, November 1, 1997
Last modification: February 28, 2004