The vertices in the network diagram below show the entrance to a wildlife park and six picnic areas in the park:
The numbers on the edges represent the lengths, in metres, of the roads joining these locations.
- In this graph, what is the degree of the vertex at the entrance to the wildlife park? (1 mark)
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- What is the shortest distance, in metres, from the entrance to picnic area
? (1 mark)
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A park ranger starts at the entrance and drives along every road in the park once.
- At which picnic area will the park ranger finish? (2 marks)
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- What mathematical term is used to describe the route the park ranger takes? (1 mark)
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