Marker ID #1 ( 14.74 , 26.45 )
Marker ID #2 ( 16.24 , 15.45 )
Marker ID #3 ( 24.7 , 15.45 )
Marker ID #4 ( 24.32 , 27.29 )
Coordinates are in meters from the southwest, or bottom left of the viewing window. Calibration factor is set at 1.009

Distance from Marker ID #1 to Marker #2: 11.1m
Distance from Marker ID #2 to Marker #3: 8.46m
Distance from Marker ID #3 to Marker #4: 11.85m
Distance from Marker ID #4 to Marker #1: 9.63m
Matrix-wise calculation of polygon surface area:
(
x0 * y1 - x1 * y0 [ 14.74 * 15.45 - 16.24 * 26.45 = -201.86 ]
x1 * y2 - x2 * y1 [ 16.24 * 15.45 - 24.7 * 15.45 = -130.69 ]
x2 * y3 - x3 * y2 [ 24.7 * 27.29 - 24.32 * 15.45 = 298.39 ]
x3 * y0 - x0 * y3 [ 24.32 * 26.45 - 14.74 * 27.29 = 241.12 ]
)/2 = 103.48m2