I find the name "30-sided polygon", "40-sided polygon", etc. just fine.
Chiliagon
Chiliagon
There is no formula for how many sides there are in a polygon; the name of the polygon shows how many sides it has.
There is not a name for such a polygon. A polygon with one million sides is called a megagon though..
the name of the polygon with 101 sides is hecatontakaihenagon
Myriagon
Chiliagon has 1000 sides. (In geometry, a chiliagon is a polygon with 1000 sides. The measure of each angle in a regular chiliagon is 179.64°.)
Chiliagon
Chiliagon
It's perfectly acceptable to call it a 1000-agon
The name of a polygon with 100 sides is a "hecatontagon," and a polygon with 1000 sides is called a "chiliagon." So, if you ever need to impress someone at a party with your knowledge of shapes, now you know what to call those bad boys.
The name of a polygon with 15 sides is a pentadecagon
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.
The name of a 10,000 sided polygon is Myriagon.