The displacement needed by the airplane to return to its starting point is 12.53 km.
From the question, we are to determine the displacement
Using the diagram attached, D is displacement
Using the Pythagorean theorem,
D² = 11² + 6²
D² = 121 + 36
D² = 157
D = √157
D = 12.53 km
Hence, the displacement needed by the airplane to return to its starting point is 12.53 km.
Learn more on Displacement here: https://brainly.com/question/13149055
Find attached an illustrative diagram
