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Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Suppose that a connected planar graph has fifteen edges and its planar representation divides the plane into ten regions. Determine how many vertices in this graph.

10. Suppose that a connected planar graph has fifteen edges and its planar representation divides the plane
into ten regions. Determine how many vertices in this graph.
а) 22
b) 15
c) 7
d) 10
e) 5
Transcribed Image Text:10. Suppose that a connected planar graph has fifteen edges and its planar representation divides the plane into ten regions. Determine how many vertices in this graph. а) 22 b) 15 c) 7 d) 10 e) 5
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