# Angle Bisector Theorem

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by
**rredman15**

Last updated 5 years ago

** Discipline: **

Math ** Subject: **

Geometry

Angle Bisector Theorem

The angle bisector of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.

Proof

AB = AD BC DC The equation creates a proportion.

Used to find length of a side of a triangle.

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