Train route

Geometry Level 4

Two villages (points B and C) are to receive a train connection to their neighboring city (point A), as shown in the diagram.

In order to save money when building the train route, only the connection with the shortest rail route is selected.

How many kilometers of rails must be laid? Round the result to the nearest integer.

Note: The railroad does not necessarily have to be built on the 30 km segments indicated in the diagram. A railroad switch can be built to allow a railroad to split into different paths.


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