Geometry

Question Analysis

This question is about identifying the nature of line segment in a triangle, testing knowledge of angle bisectors, mid - segments, and perpendicular bisectors.

Key Concept Explanation

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

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

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

Step - by - Step Solution

1. Observe the markings on the triangle. The arcs at and indicate that these two angles are equal.

2. Since divides into two equal - measure angles, it meets the definition of an angle bisector.

Option Analysis

A.Angle bisector: Correct. As

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