Answer: the circumcenter of a right triangle.
Explanation:
The only center point that lies on the edge of a triangle is the circumcenter of a right triangle. It should be noted that the circumcenter of the right triangle can be found at the hypothenuse midpoint.
It should be noted also that the circumcenter of a obtuse triangle can be seen outside the triangle.
Therefore, the correct option is C.
Answer:
He delivered it in 1863, so C.
Explanation:
You're correct about the definition
