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What is a 12-sided polygon called?

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Quick Answer

A 12-sided two-dimensional polygon is called a dodecagon. A regular dodecagon has 12 sides that are all the exact same length and internal angles that are 150 degrees each. Since there are 12 internal angles, the total internal angles add up to 1,800 degrees.

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What is a 12-sided polygon called?
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Full Answer

A polygon refers to any two-dimensional shape that consists of only straight edges and has a closed shape. The most common polygons are those with a small amount of sides, such as triangles with three sides and squares with four sides. A dodecagon has 12 straight edges in a closed loop along with 12 vertices where the edges meet.

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Related Questions

  • Q:

    What shape has 12 sides?

    A:

    A dodecagon is a two-dimensional shape with 12 sides. A regular-shaped dodecagon has all its sides with the same length, and all internal angles are the same size. An irregular-shaped dodecagon has sides and angles of different sizes.

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  • Q:

    How many sides does an n-gon have?

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    An n-gon is a polygon with "n" sides, where "n" is a placeholder for any number. The letter "n" is commonly used alongside other letters in mathematics and science as variables to represent unknown numbers.

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  • Q:

    How do you find the area of a pentagon?

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    To calculate the area of a regular pentagon, the perimeter of the polygon is multiplied by the apothem and the result is divided in half. The mathematical formula for the calculation is area = (apothem x perimeter)/2.

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  • Q:

    How many angles does a heptagon have?

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    A heptagon is a figure or polygon that has seven angles and seven sides. The sum of these seven interior angles has to equal 900 degrees.

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