Answer:
The plane's displacement is 228.47 km.
Step-by-step explanation:
It is given that,
Distance covered in east direction is 210 km and distance covered in north direction is 90 km. Let d is the plane's displacement. It is equal to the shortest path covered by the particle.


d = 228.47 km
So, the plane's displacement is 228.47 km. Hence, this is the required solution.