Question

13. The degree of a pendent vertex
and an isolated vertex respectively is​

Answer 1

Answer:

The degree of a vertex in an undirected graph is the number of edges incident with it, except that a loop at a vertex contributes twice to the degree of that vertex. The degree of the vertex v is denoted by deg(v). A vertex of degree zero is called isolated. A vertex is a pendant if and only if it has a degree one.

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