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.
An angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.By the Angle Bisector Theorem, Proof: Extend to meet at point E. By the Side-Splitter Theorem, ---------(1). The angles are corresponding angles.So, Since is a angle bisector of the angle. By the Alternate Interior Angle Theorem, Therefore, by transitive property, Since the angles are congruent, the triangle is an isosceles triangle with AE = AB. Replacing AE by AB in equation (1), Example : Find the value of x.he angles are corresponding angles. So, Since is a angle bisector of the angle. By the Alternate Interior Angle Theorem, Therefore, by transitive property, Since the angles are congruent, the triangle is an isosceles triangle with AE = AB. Replacing AE by AB in equation (1), Example : Find the value of x.