Asked by rica

a motor boat moves in the direction of N 38° E for 3 hrs at 20 mph. How far north and how far east does it travel?
Answered by Reiny
I see a right-angled triangle with hypotenuse of 60 and a base angle of 52°

sin52 = y/60 --> y = 60sin52 = ...
cos52 = x/60 ---> x = 60cos52 = ...