A fifteen sided shape is called a pentadecagon.
A fifteen sided shape is called a pentadecagon. It is sometimes called a quindecagon or a pentakaidecagon.
pentadecagon
14 tetrakaideca 15 enneakaideca
The exterior angles of a 15 sided shape add up to 360 degrees
156 degrees
it is called a seven sided shape in Canada
a one sided shape is called a henagon and a 2 sided shape is called a digon
A 10-sided shape is called a decagon.
An five sided shape is called a Pentagon
a 69 sided shape is called a sexagon
A 90 sided shape is called Enneacontagon.