Inside triangles, lines from vertexes can meet at two points {Brocard point} and form equal angles at intersections with sides.
Triangle circumscribed circles have centers {circumcenter} inside triangle.
Three medians intersect at one point {median point}.
Triangles have a point {orthocenter} where three altitudes intersect.
3-Geometry-Plane-Polygon-Kinds-Triangle
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Date Modified: 2022.0225