Bisection
Division of something into two equal or congruent parts / From Wikipedia, the free encyclopedia
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Not to be confused with Dissection.
For the bisection theorem in measure theory, see Ham sandwich theorem. For the root-finding method, see Bisection method. For other uses, see Bisect (disambiguation).
In geometry, bisection is the division of something into two equal or congruent parts (having the same shape and size). Usually it involves a bisecting line, also called a bisector. The most often considered types of bisectors are the segment bisector, a line that passes through the midpoint of a given segment, and the angle bisector, a line that passes through the apex of an angle (that divides it into two equal angles). In three-dimensional space, bisection is usually done by a bisecting plane, also called the bisector.