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The following graph has 45 vertices

Mathematics
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May 11th, 2015

Every vertex has degree 4. The sum of degrees is 4 * ______= ______so the number of edges is "______" by Handshaking Theorem. This theorem gives the precise relation between the number of edges in a graph and the sum of the degree of the vertices of a graph. If you know the degree of each vertex, then, you know the sum of the degrees in the graph, and hence the number of edges.

May 18th, 2015

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May 11th, 2015
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