Medical Definition of Snellen chart. : the chart used in the snellen test with black letters of various sizes against a white background.
The circumcenter, the incenter is the point of concurrency of the angle bisectors of a triangle.
The bisector of an angle of a triangle divides the opposite side into segments which are proportional to the adjacent sides. The Teaching of Geometry David Eugene Smith. This proposition enables us to compute the length of a bisector of a triangle if the lengths of the sides are known.