Two circle, Two parallel, Three points are collinear.

ABCE is a cyclic quadrilateral, BDFC is a cyclic quadrilateral, AE//DF. AF meets ED at J. AB meets EC at G. DB meets FC at H. Then H,G,J are collinear

 

Đào Thanh Oai

 
Resource Type
Activity
Tags
collinear  line  parallel  pascal  point  tangential  thebault  three 
Target Group (Age)
19+
Language
English (United Kingdom)
 
 
GeoGebra version
4.4
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