Question

Why do we need to know the cardinal directions ?

Answer 1

We need four cardinal points ( known as four directions also East , west , north & south ) & a north line to find our proper range & bearing ( in common language we can say distance & angle from destination ). otherwise people can lost there way in difficult weather conditions & in no men area.
that's why in all maps we always saw North up & angles .

Answer 2

We need four cardinal points ( known as  four directions also    East , west , north & south ) & a north line to find our proper range & bearing ( in common language we can say distance & angle  from destination ). otherwise  people can lost there way in difficult weather conditions & in no men area. 
that's why in all maps we always saw North up & angles ..........


                           hope it helps............