A boat sails in a straight line 20km [N30°E]. What are the components of its displacement to the north and east? the answers given are 17 km [N] and 10 km [E], but using the formulae Ay = A Sin σ and Ax = A Cos σ, i've got the values mixed up... could it be because i've drawn it wrong? i've got it drawn as 30° North of East... Does N30°E mean 30° east of north?