Asked by lisah
Calculate the lenght of the return journey from point c to point a when an aircraft flies from its base a 200km on a bearing of 162 degrees to point b,then flies 350km on a bearing of 160 degrees to point c,and then return directly to base a
Answers
Answered by
Steve
planes fly on headings, not bearings.
Man, those two headings are almost the same. The distance will be very nearly 200+350.
However, using the law of cosines, the distance z is
z^2 = 200^2 + 350^2 - 2*200*350*cos178°
Man, those two headings are almost the same. The distance will be very nearly 200+350.
However, using the law of cosines, the distance z is
z^2 = 200^2 + 350^2 - 2*200*350*cos178°
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