Why only dispaly north direction on map?

Answer 1

When the north direction is known, all other directions can be calculated. Going clockwise around the map, the directions are, north, east, south, and west. With north at the top of the map, east is on the right, south is at the bottom, and west is on the left.

Answer 2

Displaying only the north direction on a map is a common convention to maintain consistency and readability. It helps users orient themselves quickly when interpreting the map and minimizes clutter. Other directions can still be determined based on the north arrow.