MCQM5717 · [1] A ship sails from port P on a bearing of 040^° for 12 km to point Q , then on a bearing of 155^° for 9 km to point R . What is the equation giving the distance PR ? APR^2 = 12^2 + 9^2 - 2(12)(9)cos 115^°BPR^2 = 12^2 + 9^2 - 2(12)(9)cos 155^°CPR^2 = 12^2 + 9^2DPR^2 = 12^2 + 9^2 - 2(12)(9)cos 65^° Next question →