Let d denote the minimum degree of a vertex in a graph. For all planar graphs on n vertices with d ≥ 3, which one of the following is TRUE?

In any planar embedding, the number of faces is less than n/2 + 2

In any planar embedding, the number of faces is at least n/2 + 2

There is a planar embedding in which the number of faces is less than n/2 + 2

There is a planar embedding in which the number of faces is at most n/(d+1)

Let d denote the minimum degree of a vertex in a graph. For all planar

1.	Let d denote the minimum degree of a vertex in a graph. For all planar graphs on n vertices with d ≥ 3, which one of the following is TRUE?
A.	In any planar embedding, the number of faces is at least n/2 + 2
B.	In any planar embedding, the number of faces is less than n/2 + 2
C.	There is a planar embedding in which the number of faces is less than n/2 + 2
D.	There is a planar embedding in which the number of faces is at most n/(d+1)
Answer» B. In any planar embedding, the number of faces is less than n/2 + 2

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Let d denote the minimum degree of a vertex in a graph. For all planar graphs on n vertices with d ≥ 3, which one of the following is TRUE?

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