Longitude and latitude can be used to determine the exact location of any point on the globe.


There are many ways to find your latitude and longitude

some of which require many more resources than others.


Find your coordinates with a map and protractor once you understand latitude and longitude.



Longitude and latitude are coordinates system that let anyone determine the location of a single point on any part of the earth’s surface.


Latitude refers to the angle of a given point measured from the equator and with a vertex at or near the center of the earth (depending on the type of latitude measured). As you move north or south, the latitude will increase from 0° to 90.



Longitude is a similar measure, although it measures location to the east or west of the prime meridian—the imaginary line that connects the north and south poles and crosses Greenwich, London.


The calculation for longitude uses the angle made from a line that goes from the earth’s center to the intersection of the prime meridian and the equator and then extends east or west. Unlike latitude.


However, the earth’s longitude at both east and west reaches 180°.

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The zero point of longitude is defined as a point in greenwish also called the prime meridian.

The demarcation of the latitude coordinates is done with circles on the globe parallel to the equator.


The great-circle distance, orthodromic distance, or spherical distance is the shortest distance between two points on the surface of a sphere, measured along the surface of the sphere (as opposed to a straight line through the sphere’s interior). The distance between two points in Euclidean space is the length of a straight line between them, but on the sphere there are no straight lines. In spaces with curvature, straight lines are replaced by geodesics.


Geodesics on the sphere are circles on the sphere whose centers coincide with the center of the sphere.

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In conclusion, to locate a place on earth’s surface, simply find the point of intersection of the line of Latitude and the line of Latitude of the place.


The Longitude and Latitude is usually written as an ordered pair of Latitude first and longitude second, i.e (lat, long) in the same manner of (X,Y) coordinates.


Method to locate any point

  • Draw a sphere
  • Draw the given latitude
  • Draw the Longitude


For example,

Using a suitable sketch, locate the points

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B (15⁰ N, 45⁰E)

15⁰N is latitude and 45⁰E is longitude


Check diagram below for illustration

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