Imagine a plane leaves Ronald Reagan airport and travels along vector A northeast towards Annapolis. When it reaches the city, the plane turns toward the northwest to reach Baltimore travelling over vector B. Next it turns back to the southwest, takes vector C to Dulles airport and returns home on vector D. Now imagine you start from the same position, but this time your first trip goes in the direction of vector B. Then you travel by vector C, D, and finally A. What is your destination this time