+130085 1. In Triangle ABC, the circumcenter and orthocenter are collinear with vertex A. Which of the following statements must be true?
I believe that "2" is true
The circumcenter is located at the intersection of the perpendicular bisectors of the sides of a triangle
The orthocenter is located at the intersection of the altitudes of a triangle
But, in an equilateral triangle, the perpendicular bisectors of the sides and the altitudes are the same
