Center of gravity: The three midlines of a triangle intersect at a point, and the distance from the point to the vertex is twice as long as the distance from the midpoint of the opposite side.

Exterior Center: The perpendicular bisector of three sides of a triangle intersect at one point.

Vertical center: The three heights of a triangle intersect at a point.

Heart-shaped: The bisectors of the three internal angles of a triangle intersect at one point.