A boat is crossing the river as shown. To the nearest tenth of a degree, find the angle at which the boat must head upriver in order to travel directly across the river. Diagram is not drawn to scale.
https://www.connexus.com/content/media/456845-2232011-25832-PM-87452468.png

Question

A boat is crossing the river as shown. To the nearest tenth of a degree, find the angle at which the boat must head upriver in order to travel directly across the river. Diagram is not drawn to scale.
https://www.connexus.com/content/media/456845-2232011-25832-PM-87452468.png

anonymous · Answer

tan x = 5/14
=> x = tan^-1 ( 5/14) = 19.7 degree
( No idea how the boat flies up there, though!)