NUMERICAL AND GRAPHIC SCALES ON MAPS

The scale on a map is the relationship between the real dimensions of the surface that is being represented and its proportion on the map.

There are two types of scales:

NUMERICAL SCALE

Indicates how many times smaller the representation is compared to the actual sruface represented:

1:10

1:100

1:1000

The different categories in which maps can be classified according to the nuemrical scale are:

CARTOGRAPHIC REPRESENTATIONS

1:500,000-greater denominations: CARTOGRAPHIC REPRESENTATIONS

1:250,000-500,000: CHARTS

1:25,000-lower denominations: BLUEPRINTS

GRAPHIC SCALE

It is shown in a rectangle divided into three parts, which represent one or more kilometer of the surface.

To calculate the distance you only need a small ruler to measurethe number of centimeters from one point to the next and then place the ruler on the scale. It allows you to calculate the equivalent number of kilometers or meters in real life.

SOURCE: Geography, Torres Valdivia E, Reyes Ramírez D.O, Kells Educations 2014.

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