Answer:
Yes, a polygon must have exactly 3 sides to be called as a triangle.
Explanation:
Yes, a polygon must have exactly 3 sides to be called as a triangle.
There must be at least three sides to make a polygon i.e. a polygon must have at least three sides and it may be any number more than 3. The polygon with four sides is called a quadrilateral, with five sides is called a pentagon, with six sides is called a hexagon and so on.
If we deal with less than three sides, say 2 sides or one side then it is not possible to form a closed figure and a polygon is always a closed figure.
(Answer)