Yes there is it is called a pentadecagon (or quindecagon) or pentakaidecagon.
A fifteen sided shape is called a pentadecagon.
The name of a fifteen sided polygon is known to have two names : pentakaidecagon, pentadecagon John Irving Dr. Math
heptagon * * * * * No. That is a 7 sided figure. A 17 sided figure is a heptadecagon.
A fifteen sided shape is called a pentadecagon. It is sometimes called a quindecagon or a pentakaidecagon.
The interior angles of a fifteen sided polygon amount to 2340 degrees.
sexogon
A ten sided figure is a decahedron.
An eight sided figure is an octagon.
A pentadecagon. But I prefer 15-gon since it means that my reader does not need to be familiar with Greek prefices to know what I am talking about.
A six sided figure is called a hexagon.
A six sided figure is called a hexagon.
a twlve sided figure is calles a pentogram