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# How Many Sides Does a Polygon Have?

**A polygon is a plane figure that has "at least three straight sides and angles," according to Oxford Dictionaries.** However, polygons can have more than three sides; most have five or more.

The word polygon comes from the Greek roots "poly," meaning many and "gon," meaning angle. When naming polygons, the appropriate Greek number replaces the root for the poly. For example, the word pentagon, which describes a five-sided polygon, comes the Greek word for five, "penta." Some other polygons are the heptagon, the tridecagon, the heptacontagon and the hexahectaheptacontakaidigon. These shapes have seven, 13, 70 and 672 sides, respectively. For polygons with more than 10 sides, many mathematicians use the more manageable "n-gon" form; for example, they call the hexahectaheptacontakaidigon a "672-gon."

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## What Is a Polygon With Four Sides and Four Angles Called?

A: A polygon with four sides and four angles is called a quadrilateral. Quadrilaterals are two-dimensional, closed shapes with angle measurements that add up ... Full Answer >Filed Under: -
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## What Is an Irregular Polygon?

A: An irregular polygon is any polygon where all sides and all interior angles are not equal. An polygon can be an irregular polygon regardless of how many si... Full Answer >Filed Under: -
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## How Many Degrees Are in a Polygon?

A: The degrees of a polygon, or the sum of its angles, depends on the number of sides the polygon has. The sum of the degrees of the angles of a polygon equal... Full Answer >Filed Under: -
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## How Many Sides Does a Heptagon Have?

A: A heptagon is defined as polygon with seven angles and seven sides. The heptagon is sometimes referred to as the septagon, using the Latin numerical prefix... Full Answer >Filed Under: