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9 terms

Triangle points of concurrency

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point of concurrency
The point of intersection of 3 or more lines
incenter
The point of intersection of the angle bisectors of a triangle
centroid
The point of intersection of the medians of a triangle
circumcenter
The point of intersection of the perpendicular bisectors of a triangle
orthocenter
The point of intersection of the altitudes of a triangle
altitude of a triangle
A line segment that connects the vertex of a triangle to the opposite side of the triangle and is perpendicular to that side
median of a triangle
A line segment that connects a vertex of a triangle to the midpoint of the opposite side of the triangle
angle bisector
A line segment that bisects an angle of a triangle
perpendicular bisector
A line segment that passes through the midpoint of a side of a triangle and is perpendicular to that side.