Video Description: Journey
to the Center of a Triangle (1977), International Film Bureau Inc.,
Bruce Cornwell. This movie is part of the collection:
Academic Film Archive of North America
Incenter: is the point of concurrence of the
triangle's angle bisectors and the center of the incircle.
Circumcenter: is the point of concurrence of the
triangle's three perpendicular bisectors and the center of the
circumcircle.
Centroid: is the point of concurrence of the
triangle's three triangle medians.
Orthocenter: is the point of concurrence of the
triangle's three altitudes.
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