it is called icosikaiheptagon
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon
icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon
Duodecagon <--wrong... a duodecagon is a 12-sided polygon. icosagon is a 20 sided polygon.
The name of a 12 sided polygon is Dodecagon.
the sum of the interior angles in a 27 sided polygon is 4500.
27-agon
A 27-sided polygon would be called an icosiheptagon.
The sum of the exterior angles of any polygon, including a 27 sided one, is 360 degrees.
4500 dgrees
4500 degrees
360 degrees
11
One billion-sided polygon = GIGAGON
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
For an n-sided polygon, the number of diagonals is 1+2+3+....+(n-4)+2(n-3). For a nine-sided polygon, there are 1+2+3+4+5+2(6)=27 diagonals.
An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon