A ship leaves the island of Guam and sails 285km at 40 degre

[aron silvester]

<Moderator's note: Moved from a technical forum and therefore no template.>

Is this right? Click on the image for the full question and my answer.

 

[phyzguy]

I think what you have done is correct, but you need to be more specific than "south of east" for the new heading. In other words, you should specify "x degrees south of east".