GATE | GATE-CS-2005 | Question 90

Which one of the following graphs is NOT planar?

GATECS2005Q47
(A) G1
(B) G2
(C) G3
(D) G4


Answer: (A)

Explanation: A graph is planar if it can be redrawn in a plane without any crossing edges. G1 is a typical example of nonplanar graphs.

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