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.
Prove that the bisector of an exterior angle of a triangle divides the opposite side externally into segments that are proportional to the adjacent sides. That is, the external bisector of the angle at C externally divides the side AB at M such that Hint: Draw AE parallel to CD.isector of An Angle of a triangle. Exploration Construct any triangle. Construct an angle bisector in the triangle and draw the segment along the angle bisector from the vertex to the intersection with the opposite side. Click here for a GSP Sketch to explore these ratios.