I have no idea how to work these problems...there are four of them...I have the answer for each of them (for the back of the book)...i would really appreciate some guidance..
for the second, see the diagram below.
i used F for Franklin, C for Centerville, and R for Rosemont
Note that angle FCR = 32 + 90 + 15 = 137 degrees
we want the distance FR
By the cosine rule:
km
you can use the sine rule to find angle CRF, and then finding the bearing is easy from there