Draw rough diagrams to illustrate the closed curve.

Consider the given figure and answer the question:

Is it a curve$?$

Consider the given figure and answer the question:

Is it a closed $?$

Illustrate, if possible, the following with a rough diagram.

A closed curve that is not a polygon.

Illustrate, if possible, the following with a rough diagram.

An open curve made up entirely of line segments.

Illustrate, if possible, the following with a rough diagram.

A polygon with two sides.

Name the angles in the given figure.

In the given diagram, name the point(s) in the interior of $\angle DOE$.