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# What Is a Seven-Sided Polygon Called?

**A seven-sided polygon is called a "heptagon."** "Hepta-" or "hept-" is a prefix from the Greek word meaning "seven." In addition to having seven sides, the heptagon also has seven angles where the sides meet.

The seven-sided figure is also known as a "septagon." However, this name is a combination of a Latin prefix, "septa-," with a Greek suffix, "-gon." Linguistics experts recommend use of "heptagon" as the name for this type of figure. In a regular heptagon, each of the interior angles is equal to 51.43 degrees. The word "heptagon" is rare in literature and use outside of mathematics.

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## What Is a 100-Sided Polygon Called?

A: A 100-sided polygon is called a hectogon, centagon or 100-gon. In general, any n-sided polygon with over 12 sides is called an n-gon. While there are other... Full Answer >Filed Under: -
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## What Is the Point Where the Sides Meet in a Polygon?

A: The point where the sides of a polygon meet is called the vertex. A polygon is a closed plane figure with three or more sides. Full Answer >Filed Under: -
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## What Is a 12-Sided Figure Called?

A: A 12-sided polygon is called a dodecagon. A polygon is any closed figure with 3 or more sides and angles. Every polygon with 3 to 20 sides has a name. Poly... Full Answer >Filed Under: -
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## What Is a Nine-Sided Polygon?

A: A nine-sided polygon is commonly called a nonagon. This polygon, which has nine edges, or vertices, is also called an enneagon. The term enneagon is prefer... Full Answer >Filed Under: