Y by
From a point
of the altitude
of the triangle
are drawn to the sides
,
, the perpendiculars
and
respectively . It is known that the circumscribed circle of the triangle
is tangent to the line
. Prove that
.










This post has been edited 1 time. Last edited by parmenides51, Aug 18, 2021, 8:47 PM
Reason: corrected typo, thanks to Nersik.883
Reason: corrected typo, thanks to Nersik.883