A telecommunications system is going to be installed at a company site. The switching center that governs the system must be located in one of the five buildings to be served. The goal is to minimize the amount of underground cabling required. In which building should the switching center be located? Assume a straight-line distance measure. Building Location 1 (10,10) 2 (0,4) 3 (6, 15) 4 (8, 20) 5 (15,0)