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Some commonly-known shapes are squares, circles, triangles, stars and rectangles. There are many different kinds of polygons used in geometry and many shapes that combine or arrange multiple polygons to be used in designs.

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The dodecagon is the name of a 12-sided shape. This polygon also has 12 interior angles and 12 vertices. The sum of the interior angles of the dodecagon is 1,800 degrees.

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A six-sided shape is known as a hexagon. This refers to an item with a flat shape that has straight sides.

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Sphere, torus, cylinder, cone, cube, triangular pyramid and square pyramid are some of the most common 3D shapes. There are certain characteristics and rules that apply for each one, and some of them can also be found in nature.

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There are many wood shaping tools depending on what project is being done. Saws, rasps and chisels are all used for wood carving and shaping.

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A seven-sided shape is called a heptagon. Some people refer to heptagons as septagons, but this mixes a Greek suffix with a Latin prefix, so it is not the preferred usage.

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The name of an eight-sided shape is an octagon. In addition to the eight sides, the octagon also has eight vertices and eight interior angles. The interior angles add up to 1080 degrees.

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A nine-sided shape is called a nonagon or enneagon. A nonagon is a type of polygon. Polygons are closed-plane figures that are made of line segments.

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Three-dimensional shapes are solid shapes that exist in three dimensions, which include length, width and depth. The main difference between 3-D shapes and 1-D or 2-D shapes is that depth is incorporated along a third axis outside of the original 2-D plane.

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Some examples of the names of beard shapes are goatee, soul patch, chin strip and mutton chops. Different shapes have been popular during different time periods.