Final answer:
The network formed by connecting two LANs in the same city is called a Metropolitan Area Network (MAN).
Step-by-step explanation:
When two Local Area Networks (LANs) located three miles apart in the same city are connected, the resulting network is referred to as a Metropolitan Area Network (MAN). A MAN is larger than a LAN but smaller than a Wide Area Network (WAN), typically spanning a city or a similar sized geographic area. This type of network allows institutions like colleges to share resources efficiently, such as internet access, databases, or software applications.