Question: how to calculate distance between two latitude and longitude in c#?
Answer: Pseudocode of the Algorithm to calculate the distance between to coorindates: public static double DistanceTo(double lat1, double lon1, double lat2, double lon2, char unit = 'K') { double rlat1 = Math. PI*lat1/180; double rlat2 = Math. ... 
Real World C# Implementation, which makes use of an Extension Methods.