The number of even nodes in the network of the figure is:
5.
2.
3.
7.
In the figure, represents a network. The number of vertices are:
4.
1.
The figure, is a network.
The number of arcs is:
The number of arcs in the network in the figure is:
6.
In a network with 4 vertices and 5 edges. The number of regions is:
