Practice: Angle Bisector

Practice 1
In [math]\triangle ABC[/math] shown below, the internal angle bisector of [math]\angle A[/math] intersects side BC at point D. Find the length of segment BD.
Practice 2
Find the length of segments BD, CE, and DE in the diagram below.
Practice 3
Find the length of segment BQ in the diagram below.
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Information: Practice: Angle Bisector