Possible Duplicate:
How do I measure distance on a globe?
Say I have the coordinates of two locations. What formula could tell me the distance between the two? I'm not a math person at all, but I need a way of solving this.
Possible Duplicate:
How do I measure distance on a globe?
Say I have the coordinates of two locations. What formula could tell me the distance between the two? I'm not a math person at all, but I need a way of solving this.