Question

can you help me with this question?
Use the Law of Cosines to solve the problem.

A ship travels due west for 83 miles. It then travels in a northwest direction for 111 miles and ends up 165 miles from its original position. To the nearest tenth of a degree, how many degrees north of west did it turn when it changed direction? Show your work.

Answer 1

did you try this ? do you know the Law of cosines ?

Answer 2

no
but i read it and don't understand it?

Answer 3

here you need angle x , use law of cosines,

\(c^2=a^2+b^2-2ab \cos x\)
just plug in a,b,c, values!