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| A solid that is bounded by polygons, called faces, that enclose a single region of space. |
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| Polygons that enclose a single region of space, creating a Polyhedron. |
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| A line segment formed by the intersection of two faces of a polyhedron. |
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| A point where three or more edges of a polyhedron meet. |
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| A polyhedron whose faces are all congruent regular polygons. |
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| A polygon such that any two points on its surface can be connected by a line segment that lies entirely inside or on the polyhedron. |
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| The intersection of a plane and a solid. |
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| Five regular polyhedra, named after the Greek mathematician and philosopher Plato, including a regular tetrahedron, a cube, a regular octahedron, a regular dodecahedron, and a regular icosahedron. |
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The number of faces (F), vertices (V), and edges (E) of a polyhedron are related bby the formula
F + V = E + 2 |
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