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Eight.
8.
A shape that has 77 sides is called a heptacontakaiheptagon. Naming polygons uses a combination of Greek prefixes and the suffix -gon.
A regular hexagon. For more information on naming polygons, go to mathforum.org/dr.math/faq/faq.polygon.names.html
It can be called an 85-gon or an octacontakaipentagon. The second is not at all common, it is simply constructed based on the pattern of naming other polygons, most polygons with more than twelve sides are simply called (the number)-gons.
There are lots of different types of polygons Polygons are classified into various types based on the number of sides and measures of the angles.: Regular Polygons Irregular Polygons Concave Polygons Convex Polygons Trigons Quadrilateral Polygons Pentagon Polygons Hexagon Polygons Equilateral Polygons Equiangular Polygons
After a period or when you are naming a person, place or thing
They are quadrilaterals which are 4 sided 2d shaped polygons