The map shows regions within a country.
A network diagram is to be drawn to represent this map. Vertices will be used to indicate each region and edges will be used to represent a border shared between two regions.
How many edges will there be in the network diagram?
- \(8\)
- \(7\)
- \(6\)
- \(5\)
Show Worked Solution
\(\text{Network diagram:}\)
\(\text{Network has 7 edges.}\)
\(\Rightarrow B\)
♦♦ Mean mark 30%.