[] , [] , [^] , []Circumcenter / Realistic problems (2)(GC World : Various Problems ,Five centroids of triangle etc.)
There are three houses of Mr. A, Mr. B, and Mr. C in the wilderness.
(Notice position is different)
They decide to dig a common well.
Where is the best place?
What do you find from this case.


Forum of Geometric Constructor by Y.Iijima