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A connected planar graph having 6 vertices, 7 edges contains _____________ regions.(a) 15(b) 3(c) 1(d) 11My question comes from Graph topic in portion Graph of Data Structures & Algorithms IThe question was posed to me in exam. |
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Answer» CORRECT option is (B) 3 The EXPLANATION is: By euler’s FORMULA the relation between vertices(N), edges(q) andregions(r) is given by n-q+r=2. |
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