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+4 votes

Let G be a simple connected planar graph with 13 vetices and 19 edges. Then, the number of faces in the planar embedding of the graph is:

  1. 6
  2. 8
  3. 9
  4. 13
asked in Graph Theory by Boss (18k points)
retagged by | 799 views
Why is it marked out of syllabus?Is graph theory is not in syllabus?
its in

1 Answer

+11 votes
Best answer
f=e-n+2 where f denotes number of faces E the number of edges n the number of vertices So f=19-13+2 = 8 faces
answered by Boss (14.1k points)
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