A polygon with 20 sides is called either a 20-gon or an 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
The name of a polygon with 20 sides is an icosagon, and a polygon with 29 sides is called an enneakaidecagon. So there you have it, two fancy names for some oddly shaped figures. Hope that clears things up for you!
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 7 sides is called a heptagon.
Heptadecagon.
hectagon is the answer
A twenty-one-ogon.
A polygon with 21 sides is called an Icosagon.
A polygon with seven sides is called a septagon.
a polygon with 9 sides is called a nonagon
A polygon with 5 sides is called a Pentagon.