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Find the number of faces in a simple planar graph

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Reference no: EM131579467

Question: In a simple graph, every face has at least three edges. This means that the number of pairs of a face and an edge bordering that face is at least 3f. Use the fact that an edge borders either one or two faces to get an inequality relating the number of edges and the number of faces in a simple planar graph.

Reference no: EM131579467

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