Joy walks 2 km east, then 5 km north, then 6 km west. In which direction is she from her starting point?
Correct answer: B. Northwest
Net movement: 6 − 2 = 4 km west and 5 km north. Since she is both north and west of the start, she is to the northwest. Her distance from the start is √(4² + 5²) = √41 km, about 6.4 km.
medium