2022 SSMO Team Round Problems/Problem 12
Problem
Regular pentagon is inscribed in circle
with radius
. Circle
is the reflection of
across
. Let
be the intersection of
and
, let
be an intersection of
and
, and let line
be the tangent to
at
. The sum of the possible distances from point
to line
can be expressed as
, where
is a squarefree positive integer. Find
.