The imaginary lines that run vertically from the North to the South pole are referred to as lines of longitude. The Prime Meridian is the line oflongitude having a value of 0 degrees on the globe.
Nevertheless, the Prime Meridian divides the world map into two equal halves; The Eastern and the Western hemispheres.
The towns are 8 kilometers apart because as you see 6 centimeters equal 2 of the 3 centimeters which means that you add four twice or times it by 2 to get 8