Geometry

Question Analysis

This question focuses on identifying the type of line segment  in the triangle, testing knowledge of mid - segments, angle bisectors, and perpendicular bisectors.

Key Concept Explanation

Mid - segment: Connects the midpoints of two sides of a triangle.

Angle bisector: Divides an angle of a triangle into two equal - measure angles.

Perpendicular bisector: Is perpendicular to and bisects a side of a triangle.

Step - by - Step Solution

1. Observe the red arcs at  and . These arcs indicate that .

2. Since  divides

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