A:### Quick Answer

**A 100-sided polygon is a hectagon.** It comes from the Greek prefix "hecta," which means "100," and "gon" from "gonu," which means "knee," but later denoted "angle."

A polygon is a closed two-dimensional geometric figure containing several line segments, where each side intersects only two other segments at what is called a vertex. Some commonly used prefixes that denote the number of sides of a polygon include "tetra," "penta," "hexa," "hepta" and "octa," used for the numbers 4, 5, 6, 7 and 8, respectively. Generally accepted polygonal names are pentagon, hexagon, heptagon, octagon, nonagon and decagon. An "n-gon" is a type of polygon with n number of sides, where n is a variable.

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## What is the name of a 12-sided polygon?

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Full Answer >**The accepted name of a 12-sided polygon is "dodecagon."**A polygon is a two-dimensional shape consisting of angles and straight lines in a closed system. The word "polygon" comes from the Greek "poly," which means "many" and "gon," which means "sides."Filed Under: - Q:
## What do you call a 20-sided polygon?

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Full Answer >**A 20-sided polygon is called an icosagon.**Along with having 20 sides, all icosagons have 20 interior angles that add up to a total of 3240 degrees.Filed Under: - Q:
## What is a six-sided figure called?

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Full Answer >**A 6-sided polygon is called a hexagon.**A polygon is any closed figure with 3 or more sides and angles. Every polygon from 3 to 20 has a name. Polygons with 30, 40, 50, 60, 70, 80, 90 and 100 sides have names, as well.Filed Under: - Q:
## What is a seven-sided figure called?

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Full Answer >**A seven-sided polygon is called a "heptagon."**According to MathWorld from Wolfrom Research, Inc., a seven-sided shape is also sometimes called a "septagon." This latter term, however, is not commonly used to describe this shape.Filed Under:

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