Y by
Let
be a parallelogram with
and let
be points on the circle that passes through
and
such that
and
are tangents to this circle. Knowing that
, determine
.

![$[ABCD]$](http://latex.artofproblemsolving.com/c/d/3/cd3361fb9586094387d885d23e9efce948e8b291.png)









This post has been edited 1 time. Last edited by parmenides51, Oct 10, 2020, 7:16 AM