A closed figure is called a polygon if it has
A) more than 2 sides.
B) more than 1 side.
C) less than 10 sides.
D) less than 2 sides.

Hint- We know that a polygon is a two-dimensional simple closed curve where the sides do not cross each other instead, they intersect at vertices. A polygon is formed when at least three lines intersect to form a closed curve.

Complete step-by-step answer:
It is asked in the question that a closed figure is a polygon when three sides are there or more than two sides are there to form a closed curve.
Hence, it can be said that a closed figure is called a polygon if it has more than 2 sides.
Hence, option (A) is the correct answer.

Note-Generally, the sides are straight lines, and when there are 3 straight lines joined to form a closed curve, then it is called a triangle. And when it is a 4-sided polygon, then we call it a quadrilateral. It is seen that a polygon should have at least three sides and it can have any number of sides more than 3, a polygon can have 10 sides, hundred sides, infinite sides. There are various types of polygons such as triangle, quadrilateral, pentagon, hexagon, heptagon and so on.