Explanation:
The attached image shows the path followed by an airplane that is trying to land. From the figure, it can be seen that initially, its position was 200 m due east, then 150 m due south, 200 m due west, 250 m due south.
(a) The total path covered during its entire journey is called distance.
D = 200 m+150 m+200 m+250 m
D = 800 m
(b) The shortest path covered by an object is called displacement of an object. The shortest path covered is shown by red color. It means that displacement is (150+250) m = 400 m
(c) It is clear from the figure that, the Airplane's displacement is in the south direction.