tangential to tangential quadrilateral

ABCD is cyclic quadrilateral, (E),(F),(G),(H) are incircle circle of for small triangle. M,N,P,Q are intersection of four line are reflection of AC on FE, AC on HG ; and BD on FG, BD on EH. Then M,N,P,Q are tangential quadrilateral.

 

Đào Thanh Oai

 
Resource Type
Activity
Tags
circle  collinear  dao  incircle  midpoints  oai  perpendicular  quadrilateral  tangential  thanh  thebault triangle Show More…
Target Group (Age)
19+
Language
English (United Kingdom)
 
 
GeoGebra version
4.2
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1075
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