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POLYHEDRA |
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A
polyhedron in space is a family of polygons (faces) such that each edge
only belongs to two faces. Between two edges A, A' there is always a
chain of edges and faces A=A0, C1, A1, C2,...,Cn,An=A’ linked such that any compact set that cuts the figure can cut a finite number of faces. When the entire polyhedron is located in any of the semi-spaces in which the planes of their faces divides the space then the polyhedron is convex (and concave in any other case). |
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| What are the plane sections of a convex polyhedron? | ||
| Solution | ||
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