Determine if point intersects 35km radius around another point? Possible in Linq? <p>Assume I have a point at the following location:</p> <p>Latitude: 47°36′N Longitude: 122°19′W</p> <p>Around the above point, I draw a 35Km radius. I have another point now or several and I want to see if they fall within the 35Km radius? How can I do this? Is it possible with Linq given the coordinates (lat, long) of both points?</p>