Explain different types of scale on a topographical map
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1. Graphical Scale: This is where a line is segmented (usually with black and white blocks) to denote various distances on the map.
2. Verbal Scale: Uses words to describe the ratio between distance on the map and actual distance on the ground. "1 inch on the map is 10 miles" Ex: 1 inch = 10 miles
3. Fractional Scale: Uses a representative fraction to describe the ratio between the map and the real world for any particular unit of measurement. Ex. 1:100000
The fractional scale commonly requires unit conversion. If the fractional scale is 1:100000, and the distance between two points on the map is 2 inches, then the distance between those points in the real world is 200000 inches (2 x 100000 - from the fractional scale), but this measurement isn't too useful
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2. Verbal Scale: Uses words to describe the ratio between distance on the map and actual distance on the ground. "1 inch on the map is 10 miles" Ex: 1 inch = 10 miles
3. Fractional Scale: Uses a representative fraction to describe the ratio between the map and the real world for any particular unit of measurement. Ex. 1:100000
The fractional scale commonly requires unit conversion. If the fractional scale is 1:100000, and the distance between two points on the map is 2 inches, then the distance between those points in the real world is 200000 inches (2 x 100000 - from the fractional scale), but this measurement isn't too useful
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Answer:
There are three main ways that scale is indicated on a map: graphic (or bar), verbal, and representative fraction (RF).
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