Bob walks 8km towards North
and turns to his right and walks 4km more.
He then turns to his right and walks 5km
and turns again to his right and walks another 4 km.
Here he meets Smith coming from the opposite direction.
They both stop here.
If the starting point from where bob started is marked as A
and finishing point is marked as B,
then what is the distance between A and B?
- 8km
- 4km
- 3km
- 9km
