Question

A polygon is a simple closed curve made up of line segments. Here,
The line segments are the sides of the polygon.
(ii) Any two sides with a common end point are adjacent sides.
(iii) The meeting point of a pair of sides is called a vertex.
(iv) The end points of the same side are adjacent vertices.
(v) The join of any two non-adjacent vertices is a diagonal.​

Answer 1

Answer:

I think the answer is second one