Some problems of cyclic quadrilateral

ABCD be a cyclic quadrilateral if only if angle bisector of angle(AB,CD) and angle(BC,AD) create rectangular
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Đào Thanh Oai —

 
Resource Type
Activity
Tags
circle  collinear  concyclic  cyclic  dao  midpoints  oai  perpendicular  quadrilateral  tangential  thanh thebault triangle Show More…
Target Group (Age)
19+
Language
English (United Kingdom)
 
 
GeoGebra version
4.4
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756
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