What does points mean in Polygon

Answer 1

A point is a part of an object with very little surface area at one end. This point is considered sharp because all energey transfered from a point is concentrated in the forementioned small amount of surface area. Having so much weight per amount of surface area, the point is able to be a dangerous defense weapon.

Answer 2

polygon = shape with straight lines, at least 3 sides. A triangle is a polygon. A triangle has 3 points

Answer 3

I wanted to know about points. What does that means?