Polyhedron
A polyhedron is a three-dimensional solid figure in which each side is a flat surface. These flat surfaces are polygons and are joined at their edges. The word polyhedron is derived from the Greek poly (meaning many) and the Indo-European hedron (meaning seat or face).
A polyhedron is a three-dimensional solid shape that has flat faces, straight edges, and sharp corners or vertices. It is a type of geometric figure that can be defined as a closed, bounded solid figure that is made up of a finite number of planar surfaces, also called faces.
A polyhedron can have any number of faces, but it must have at least three, and each face must be a polygon. The faces of a polyhedron meet at edges, and each edge meets exactly two faces. The vertices of a polyhedron are the points where the edges meet, and each edge meets exactly two vertices.
Examples of polyhedra include cubes, pyramids, prisms, and dodecahedra. Polyhedra are used in many fields, including mathematics, engineering, architecture, and art. They can be used to model real-world objects, to study geometrical properties, or to create beautiful sculptures and designs.
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