1. The problem statement, all variables and given/known data Find the distance in kilometers between each pair of cities assuming they lie on the same north-south line: Panama City, Panama, 9° N and Pittsburgh, Pennsylvania 40° N 2. Relevant equations All we talked about in class is that θ = S/r 3. The attempt at a solution I'm really not sure what to do... I assume I'm supposed to be solving for s or r, given that θ1 is 9 and θ2 is 40 but...I'm still not sure what to do.