What type of scale is represented as 1:200 on a map?

The representation of a scale as 1:200 indicates a representational fraction, which illustrates the relationship between a distance on the map and the corresponding distance in the real world. In this case, 1 unit measured on the map equals 200 of the same units in reality. This type of scale is particularly useful because it allows for easy calculations regardless of the measurement system in use (metric or imperial), as the ratio is universally applicable.

A bar scale, also known as a graphic scale, visually shows the scale on a bar, and while it provides a clear representation of distances, it does not express the scale in ratio form. A verbal scale uses words to describe the scale (e.g., "one inch equals 200 miles"), which is different from the fractional expression. A linear scale, while similar to a bar scale, particularly denotes a line that corresponds to real-world distances without providing a fractional representation.

Understanding these differences enhances one's ability to choose the appropriate scale type for various applications in GIS, ensuring accurate representation and measurement of geographical information.