A plane on a training flight takes off from an airport and flies on a bearing \(054^{\circ}\) for \(4.9km\).
It then changes course to a bearing of \(137^{\circ}\) and flies for \(7.2km\).
The pilot now wishes to return to the airport. At what bearing must he fly to go directly to the airport?
(Make a scale drawing and choose the answer nearest to your answer).