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..
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:
you can use the sine rule to find angle CRF, and then finding the bearing is easy from there