A fifteen sided shape is called a pentadecagon. It is sometimes called a quindecagon or a pentakaidecagon.
A million sided shape shape is called a megagon.
There is no such thing as a 1 sided shape nor a two sided shape.
An octagon is an 8 sided 2 dimensional shape. A cylinder with the base of a hexagon (6 sided shape) would be an 8 sided 3 dimensional shape.
a one sided shape is called a henagon and a 2 sided shape is called a digon
A fifteen sided shape is called a pentadecagon. It is sometimes called a quindecagon or a pentakaidecagon.
pentadecagon
The exterior angles of a 15 sided shape add up to 360 degrees
156 degrees
14 tetrakaideca 15 enneakaideca
A pentadecagon, although I prefer 15-gon.
The interior angles of a 15 sided polygon sum to 2340 degrees
The name of a fifteen sided polygon is known to have two names : pentakaidecagon, pentadecagon John Irving Dr. Math
The interior angles of a fifteen sided polygon amount to 2340 degrees.
The name for a 57 sided shape is derived by combining the name for a 50 sided shape with the name for a 7 sided shape. A 57 sided shape is called a pentacontaheptagon.
sexogon
10 sided 2D shape is called a decagon 20 sided 2D shape is called a icosagon 30 sided 2D shape is a swimming pool 40 sided 2D shape is unknown 50 sided 2D shape is unknown 60 sided 2d shape is unknown 70 sided 2d shape is unknown 80 sided 2d shape is unknown 90 sided 2d shape is unknown 100 sided 2d shape is unknown 110 sided 2d shape is unknown 111 sided 2d shape is unknown 120 sided 2d shape is unknown 130 sided 2d shape is unknown