There is not a name for such a polygon. A polygon with one million sides is called a megagon though..
megagon (hecatomyriagon)
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 twenty-one-ogon.
That can be true of a polygon with ANY number of sides. The only one with a particular name is a scalene triangle.
There is not a name for such a polygon. A polygon with one million sides is called a megagon though..
megagon (hecatomyriagon)
The name of a polygon with 15 sides is a pentadecagon
There is no specific name for a four-sided polygon with unequal sides.
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.
A twenty-one-ogon.
Only one polygon has a name starting with the letter "a". It is called the "Apeirogon", and it is a polygon with infinite sides.
That can be true of a polygon with ANY number of sides. The only one with a particular name is a scalene triangle.
A polygon with 6 sides is called a hexagon.
the name of the polygon with 101 sides is hecatontakaihenagon