hey! i'm not entirely sure if these questions are in the further maths course i've checked the study design but it's a bit vague on latitudes/longitudes so i was wondering if someone would be able to help me double check

if they are, would someone be able to help me out please as i'm not sure on how to do them :L (the fact that

both the latitudes and longitudes are different is messing with my head

)

thanks very much!

Find the distance around the parallel of latitude for the following locations:

a) X: latitude: 32šS, longitude 50šE ; Y: latitude 32šN, longitude 80šE

b) X: latitude: 12šS, longitude 30šE ; Y: latitude 12šN, longitude 80šE

note* my textbook is possibly the one with many typos because i've found some errors previously, so if someone has an updated textbook and would be able to check (19B q19b and c), that'd be awesome! tysmm