How is distance measured - Maps reduce the entire worl

How is distance measured  - Maps reduce the entire worl
| How is distance measured?

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SOLUTION

- Maps reduce the entire world or a part of it to fit on a sheet of paper.
- But this reduction is done very carefully so that the distance between the places are kept true. 
- The reduction of the map is only possible when a small distance on paper represents a large distance on the ground.
- To reduce a map, a scale is chosen.