Y by
Let
be an acute triangle with circumradius
. Let
be the midpoint of
and
the midpoint of
. The perpendicular to
through
and the perpendicular to
through
intersect at
. Prove that
.












This post has been edited 1 time. Last edited by emi3.141592, Sep 29, 2024, 7:54 PM
Reason: Added source
Reason: Added source