Is there a formula to work out the shortest distance between two points on the Earth's surface (i.e. the great-circle distance), given the latitudes and longitudes of those two points? - Quora
![Vincenty formula for distance between two Latitude/Longitude points | Android based Tracking System for Moving Objects Vincenty formula for distance between two Latitude/Longitude points | Android based Tracking System for Moving Objects](http://www.movable-type.co.uk/scripts/geodetic-latitude.png)
Vincenty formula for distance between two Latitude/Longitude points | Android based Tracking System for Moving Objects
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