Question

Ill give a fan and a medal to whoever can just answer this for me. I did bad in he module and don't understand this question. :/
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.