A postal employee drives a delivery truck over the route shown in (Figure 1). Figure1 of 1 A route is marked on a map. The route begins with a 2.6-kilometer-long segment going to the north from the starting point. Then it goes for 4.0 kilometers to the east. The last segment goes for 3.1 kilometers in the north-east direction, 45 degrees east of north, to the stop point. Part A Use the method of components to determine the magnitude of her resultant displacement. Express your answer in kilometers.