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# What is a 3D hexagon called?

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A 3D hexagon is called a hexagonal prism. It has two hexagons for bases and six rectangular sides. A hexagonal prism is classified as an octahedron, which is a three-dimensional geometric object with eight faces.

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Credit: Pall Jokull - www.flickr.com/photos/palljokull Moment Open Getty Images

Many pencils are in the shape of a long hexagonal prism before they are sharpened. A hexagon is classified as a six-sided polygon, which is a geometric object with line segments joining a number of points. Patterns containing hexagons are frequent in nature because they are efficient. In a grid with a hexagonal pattern, lines are the shortest possible to fill the area with the fewest number of hexagons. The pattern allows honeycombs to use less wax to construct and to remain strong under compression.

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## Related Questions

• A:

A three-dimensional shape that is made up of four triangles is called a tetrahedron. If it is a regular tetrahedron, then it contains four equilateral triangles as its faces. A regular tetrahedron is also a platonic solid.

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The surface area of a hexagonal prism can be calculated using the formula 3*(2+30.5)*a2, where a is the length of one of the sides of one of the hexagon bases. Note that this formula only applies for regular hexagonal prisms, where the sides on the hexagon bases are the same length.

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A hexagonal prism always has 18 edges. There are six edges around the top and bottom hexagon faces, equaling 12 edges, and another six where the faces are connected on the sides, for a total of 18 edges.