Direction sense · solved example
A person starts from a point and walks 11 km towards the south, then 2 km towards the east, then 1 km towards the south, then 3 km towards the east. How far (in km) is the person now from the starting point?
- 13Correct
- 19
- 6
- 7
- 20
Solution
The moves net to 5 km east and 12 km south. The straight-line distance is √(5²+12²) = 13 km.