icosagon
A polygon with 3 sides is called triangle A polygon with 4 sides is called quadrilateral A polygon with 5 sides is called pentagon A polygon with 6 sides is called hexagon A polygon with 7 sides is called heptagon A polygon with 8 sides is called octagon
A polygon with 20 sides is called either a 20-gon or an icosagon.
A polygon with 7 sides is called a heptagon.
Heptadecagon.
hectagon is the answer
A polygon with 20 sides is called an icosagon, while a polygon with 29 sides is called an enneakaikaienneagon. These names are derived from the Greek numerical prefixes "icosi-" and "enneakaikaiennea-", which mean twenty and twenty-nine, respectively. The suffix "-gon" is added to indicate a polygon.
A twenty-one-ogon.
A polygon with 27 sides is called a heptacosagon. The name is derived from the Greek words "hepta" meaning seven and "cosi" meaning twenty. The heptacosagon has 27 vertices and 27 angles, with the sum of its interior angles equal to 4050 degrees.
A polygon with 21 sides is called an Icosagon.
The polygon that has 6 sides is called a hexagon
A polygon with seven sides is called a septagon.
a polygon with 9 sides is called a nonagon