How is a compass used to find directions?
A compass always points towards the North−South direction because the needle in a compass is made of a magnet. The red arrow of the compass needle indicates its north pole. The arrow always points in the North direction.
If we know the North direction , then we can find all the other three directions at that place. If North is towards the front, then South would be towards the back, East towards the right of North, and West towards the left of North.