Question

what is the name of this figure?

Explanation:

The figure has two endpoints, \( E \) and \( F \), and a line segment is defined as a part of a line with two distinct endpoints. So this figure is a line segment, and we denote it as \( \overline{EF} \) (or segment \( EF \)).

Answer:

Segment \( EF \) (or \( \overline{EF} \))