When you say " The wind is blowing west ", I will assume "from" the usual west.
Your vector diagram would result in a right-angled triangle.
Let the actual speed of the plane be r
r^2 = 230^2+85^2
= ...
r = √...
let the angle be Ø
sinØ = 85/r
Ø = ...
direction:
N Ø E
A plane flys 230 km due north. The wind is blowing west at 85 km. what direction is the plane flying. Calculate the actual speed of the plane. What is the hearing from North?
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