It shows whatever is on a map. For example if you have two lines on a map, you wouldn't know what each of the lines mean unless there is a distinction between them. If one was a regular line with no other markings and the other was a line with slashes between them, the key would say what each of the lines stand for. Oh and the key is usually a box.
The key on a map explains what the symbols and images on the map mean.
In the context of maps or cartography, a map key is a visual explanation of the symbols or icons used on the map to represent features like rivers, roads, mountains, and other geographical elements. The key helps users understand what each symbol or color on the map represents. It is also known as a map legend.
The legend or key shows what the symbols mean
the map key is the box that tells you what the icons mean in a map
The key on a map explains what the symbols and images on the map mean.
the key
The map key is different on any map; It helps you understand how to read the map. Sometimes there are symbols you do not understand, so the key describes what they mean.
the map's key
The map key is a list of symbols and their meaning used in the map.
The key
The key.
A key is something that explains the map. For example, if you see a small triangle on a map, the key will tell you that it means a mountain. If you are working with a physical map, then the key will tell you what all the colors mean. It is basically something that tells you what things on the map mean.