Difference between revisions of "2011 IMO Shortlist Problems/G8"
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Latest revision as of 06:48, 28 October 2013
Let 
be an acute triangle with circumcircle 
. Let 
be a tangent line to , and let 
and 
be the lines obtained by reflecting in the lines 
, 
and 
, respectively. Show that the circumcircle of the triangle determined by the lines and is tangent to the circle .
