Question

which line segment is an angle bisector?

Explanation:

Step1: Recall the definition of an angle bisector

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

Step2: Analyze the given angles

In the diagram, the line segment \(GF\) divides \(\angle EGC\) into two angles of measure \(20^{\circ}\) each (\(\angle EGF = 20^{\circ}\) and \(\angle FGC=20^{\circ}\)).

Answer:

\(GF\)