Consider the given figure and answer the questions :(a)  Is it a curve?    (b)  Is it closed?

Explanation

We will use the concept of open and closed shapes to answer if the given shape is a closed curve.
Open curves are not continuous and are made up of line segments or curves which do not meet.
Closed curves can be traced without any break. They start and end in the same place.
Yes, the given figure is a curve.
Yes, it is a closed curve because all the lines are connected with each other.