How far is NYC's Nautical Community?
If the Earth were flat, we could find the distance between any two points using the Pythagorean theorem. It would just be the square root of (latitude1 - latitude2)^2 + (longitude1 - longitude2)^2. However, since the Earth is not flat, a more complex formula is needed. If the two points are close to each other, the above formula will be very close to correct, but if they are distant, it will not.