Hello i'm new in this forum and i want to get our help, please.
The altitudes of the scalene, sharp-angled triangle ABC intersect
in point H. The point S is the center of the arc BC of the circle described in
the BCH triangle, which contains the H point. Determine the angle measure BAC if
the equality AH = AS is met.
I'm know that i'm bad in english, but i'm hope that you were understood my question.