Sailing

[IloveManUtd]

A man sails 30 km from a port P to a lighthouse, Q on a bearing of 128 degrees. Then he sails another 25 km to R on a bearing of 295 degrees. Calculate the distance of PR

I'm confused because is the bearing of R 295 degrees from P or Q? Thanks.

 

[mmm4444bot]

R is on a bearing of 295 degrees from Q.

Looks like a Law of Cosines problem, once you calculate angle RQP from the givens.