The name of a polygon with 15 sides is a pentadecagon
A pentagon is the polygon with 5 sides.
A polygon with seven sides is a heptagon.
15 sides
A polygon can have any number of sides above three. The name of a three-sided polygon is a triangle.
A regular polygon
The term n-gon, where n is the number of the polygon's sides, also it could be used to name a polygon. For example, a polygon with 15 sides is a 15- gon.
There is no formula for how many sides there are in a polygon; the name of the polygon shows how many sides it has.
A pentagon is the polygon with 5 sides.
A polygon with seven sides is a heptagon.
There is no name because such a polygon does not exist. A polygon must have at least three sides.
There is not a name for such a polygon. A polygon with one million sides is called a megagon though..
A pentadecagon
15 sides
15 sides
the name of the polygon with 101 sides is hecatontakaihenagon
A polygon with 6 sides is called a hexagon.
A polygon with ten sides is a decagon.