What is a 10-sided polygon called?
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What is a 10-sided polygon called?

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Quick Answer

A polygon with 10 sides is called a decagon. The word comes from the Greek words for "ten" ("deka") and for "angle" or "corner" ("gonia"). Decagons have 10 angles and 10 sides.

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The five-pointed star on the flag of the United States is actually an irregular decagon, as each of the stars has 10 sides. It is considered irregular because the angles and sides are not equal. A regular decagon, a decagon whose 10 sides are all equal in length, has interior angles that each contain 144 degrees. The exterior angles, or the angles formed by the outside corners of a decagon, each contain 36 degrees.

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  • Q:

    What is a 10-sided shape called?

    A:

    A flat 10-sided shape with sides of equal length is called a decagon. A solid 10-sided shape with faces of equal size and shape is called a decahedron.

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  • Q:

    What shape has 10 sides?

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    A shape that has 10 sides is call a decagon. A decagon is a type of polygon, which is a two dimensional shape with straight lines. These lines connect to each other to form a closed shape.

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  • Q:

    How many degrees are in a polygon?

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    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 equals 180(n-2), where n equals the number of sides of the polygon.

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  • Q:

    What is a list of some polygons?

    A:

    A polygon is identified based on the number of its sides and vertices. Polygons are made of straight lines, called edges or sides, that meet in corners to form a closed circuit. The least number of sides needed to form a closed loop is three. A three-sided polygon is called a triangle. The list of common polygons includes quadrilateral, pentagon, hexagon, heptagon, octagon, nonagon and decagon.

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