A security firm needs to connect alarm systems to the firms main control site from five potential

Question:

A security firm needs to connect alarm systems to the firm€™s main control site from five potential trouble locations. Since the systems must be fail-safe, the cables must be run in special pipes. These pipes are very expensive but large enough to simultaneously handle five cables (the maximum that might be needed). Use the minimal-spanning tree model to find the minimum total length of pipes needed to€ƒ