Cory is driving west in a straight line. After driving for1.7kilometers, he turns north and drives for4.3km. At the end of his drive, what is the magnitude of his displacement vector?

Cassie is taking a tour of a college campus. The tour starts at a statue where she walks0.25miles north,0..18miles west,0.28miles north,0..33miles east, then0.79miles south. At the end of the tour, what is Cassie's displacement vector from the statue?