You can use the Pythagorean theorem to solve this problem.
Along the x-axis, displacement is 190km
Along the y-axis, displacement is 80km
x² + y² = r²
[solve for r]
r = √((190)² + (80)²)
r = 206.16km
tanθ = (y/x)
[solve for θ]
θ = tan⁻¹(80/190)
θ = 22.83°
Therefore, displacement of plane is 206.16 km 22.83° north of east
or
206.16 km 67.17° east of north.
