Let be the orthocenter of triangle , which has a circumradius of 4.
Let be a point on the circumcircle of triangle .
Let be the midpoint of .
What is the area of the locus enclosed by as moves along the circumcircle?
Give your answer to 2 decimal places.
Bonus: What specific shape is this locus also known as?
If you think there is no set answer, type 13.37 as your answer.