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Draw travel path of plane as line of 200 units towards North (upwards) on the paper. From the top of the line, draw wind flow as a horizontal line at 90° angle of 20 units towards west (Leftwards).
Now connect the end point to starting point. The Hypotenuse of the triangle became the direction the
plane Pointed .
Direction in terms of angle can be find as follows : sin x = 20/200 or sinx = 0.1
or x = Sin^(-1) (0.1) = 5.7° (Answer)
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Jun 18th, 2015
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