Sin and cos rules work , help please
At midnight a ship sailing due north passes two lightships, A and B, which are 10km apart in a line due east from the ship. Lighship A is closer to the ship than B. At 2am the bearings of the lighship are 149degrees and 142degrees.
I have draw a diagram to help the problem, and i have tried a few ways of finding the answers but i am soo lost , can you please help i need to;
find the distance of the ship fromA at 2am, and also find the speed of the ship - the speed i dont know where to begin