75 km at 25° north of east, then 75 km at 65° south of west, and then 75 km due south
east components (+ x axis)
75 cos 25 - 75 cos 65
north components (+ y axis)
75 sin 25 - 75 sin 65 - 75
so I get
east = +36.3 km
north = -111 km
distance = sqrt(36.3^2 +111^2)
tan angle south of east =111/36.3