Which one of the following statement is true?
A. Both A and B are planar.
B. Neither A nor B is planar.
C. A is planar and B is not.
D. B is planar and A is not.
Answer:A
Which one of the following statement is true?
A. Both A and B are planar. B. Neither A nor B is planar. C. A is planar and B is not. D. B is planar and A is not.
Explanation: A planar graph is a graph that can be embedded in the plane, i.e., it can be drawn on the plane in such a way that its edges intersect only at their endpoints. In other words, it can be drawn in such a way that no edges cross each other.