Question: The network below shows the roads that exist between eight farms (A to H) with the numbers indicating distances in kilometres.The water authority wishes to

The network below shows the roads that exist between eight farms (A to H) with the numbers indicating distances in kilometres.The water authority wishes to connect these farms to the mains water supply by laying water pipes alongside existing roads.Find the shortest spanning tree.How long is it?The length of the arc is not necessarily proportional to the distance it represents.

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