Geometry

Question Analysis

This question focuses on identifying the angle bisector among the given line segments in the triangle, testing knowledge of angle bisector definitions.

 

Key Concept Explanation

An angle bisector is a line segment that divides an angle of a triangle into two equal - measure angles.

 

Step - by - Step Solution

1. Observe the red arcs in the diagram. These arcs at  and  indicate that these two angles are equal.

2. The line segment  is the one that divides  into these two equal - measure angles. So,  is the angle bisector.

 

Option Analysis

A.

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