18096Re: [EMHL] Re: Problem from Vietnam Team Selection Tests 2009
- Aug 2, 2009Dear Antreas,
They are always perspective at a point with barycentrics:
a^2 /(q + r) : :
Bui Quang Tuan
--- On Mon, 8/3/09, xpolakis <anopolis72@...> wrote:
> From: xpolakis <anopolis72@...>
> Subject: [EMHL] Re: Problem from Vietnam Team Selection Tests 2009
> To: Hyacinthos@yahoogroups.com
> Date: Monday, August 3, 2009, 12:47 AM
> > Another problem with the
> "Vietnameze" triangle.
> Let ABC be a triangle, P a point, A'B'C' the cevian
> of P and A",B",C" the second intersections of the
> of ABC with the circumcircles of AB'C', BC'A', CA'B',
> A* := BB" /\ CC"
> B* := CC" /\ AA"
> C* := AA" /\ BB"
> Which is the locus of P such that
> ABC, A*B*C* are perspective?
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