Y by GeoKing, Rounak_iitr, trolled767, Amirreza.J
In cyclic quadrilateral
,
.
intersects
at
. A line
cuts segment
at
respectively. If
and
, prove that the diameter of the circumcircle of
equals
.












This post has been edited 2 times. Last edited by LoloChen, Jun 8, 2024, 11:12 AM