Enter the two bearings:
Distance=km, Bearning=°
\(c^2 = a^2 + b^2 - 2ac\cos{(180+b-d)}\)
\(c = (2500.00)+(2500.00)-2.(50.00.50.00).cos(180+45.00-45.00)\)
\(c = 100.00 km\)
\(bearing = 45.00°\)