Compute by DMDs the area in hectares within a closed-polygon traverse ABCDEFA by placing the X and

Question:

Compute by DMDs the area in hectares within a closed-polygon traverse ABCDEFA by placing the X and Y axes through the most southerly and most westerly stations, respectively. Departures and latitudes (in meters) follow. AB: E dep. 50, N lat. = 45; BC: E dep. = 60, N lat. = 45; CD = E dep. = 45, S lat = 25; DE: W dep = 70, S lat. = 40; EF: W dep = 50, S lat = 30; FA: W dep. = 35, N lat = 5.