Y by Circumcircle, albgeo, vinhhop, trying_to_solve_br, Adventure10
Let
be an acute scalene triangle. Let
and
be two distinct interior points of the segment
such that
. Suppose that:
and
are the feet of the perpendiculars from from
to the lines
and
respectively.
and
are the feet of the perpendiculars from
to the lines
and
respectively.
Prove that
and
intersect on the line
.

















Prove that


