Definition:Angle Bisector/Internal
< Definition:Angle Bisector(Redirected from Definition:Internal Angle Bisector)
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Definition
Let $\angle APB$ be an angle.
The internal angle bisector of $\angle APB$ is the straight line which bisects $\angle APB$.
In the above diagram, $PC$ is the internal angle bisector of $\angle APB$.
Thus $\angle APC \cong \angle BPC$ and $\angle APC + \angle BPC = \angle APB$.
Also see
- Results about angle bisectors can be found here.