Question

Ill give a medal and fan to anyone who can answer this question for. I seriously don't understand it and did bad in the module. A road crew is working close to a city sidewalk. They have created a sizeable ditch in an effort to replace old sewage pipes. The city plans to fence in the work area to keep citizens from finding themselves in harm's way. What is the perimeter of a triangular-shaped fence the city can place around the worksite, using integer coordinates (no decimals) on the grid? You must show all work to receive credit.