The number of regions in the network in the figure is:
6.
2.
3.
5.
The number of even nodes in the network of the figure is:
7.
The transversal network in the following is:
C.
B.
A.
D.
In the figure, represents a network. The number of vertices are:
4.
1.
The number of arcs in the network in the figure is:
