Question

a man starts from his home and drive 169 kilometre to east and then 192 km to the west how is far he from his home finally and in which direction?

Answer 1

he is 23km away from home and in west direction.

Answer 2

It forms a right triangle with the man in northeast direction and house as reference point 
base=192 perpendicular=169
therefore √Perpendicular∧2+base∧2=distance from house
               √169∧2+196∧2=258.799