Answer in Brief
Write a note on Grid reference.
- The location of a place can be simply defined by its latitude and longitude.
- In normal practice, latitude is stated first, and then comes the longitude.
- The latitude and longitude of a place can be expressed in units of degree, minutes, and seconds.
- A grid is a set of lines with alphanumeric codes for defining a location on a map in many topographical sheets.
- The lines that run horizontally from left to right of the map are known as northings.
- The lines that run vertically from the top to the bottom of the map are called eastings.
- The points at which the vertical and horizontal lines of the grid intersect are called coordinates which are identified by numbers or letters.
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