We have a line d and a point A.
We pass a line perpendicular to d passing through A called D.
Let H be any point on D.
Then can we place points B and C on d such that H
is the orthocenter of triangle ABC and the angle(BAC)=60 degrees?
If so, then how?
P.S. The question appears in a chapter for vector angles,
and inscribed angles, so these may be useful in solving