The distance between Bangor and Groomsport on a map is 12 cm. The scale on the map is 1:50000. The distance on the map is 12 cm. The actual distance in cm is \(12 \times 50000 = 600000~cm\).
The scale shows how much bigger the real world is than the map. If the scale is 1:50,000 it means that the map is 50,000 times smaller than the real world. For example, every 1 cm on the map ...