trig

A plane flies 75 miles south from an airfield, and then travels 120 miles more in a different direction. By this time it bears S29degreesE of the airfield. In what direction is it heading. illustrate and solve.

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asked by renzkie
  1. My diagram shows a triangle with sides 75 and 120 and a con-contained angle of 29° adjacent to the 75 side
    by sine law:
    sinØ/75 = sin29°/120
    sinØ = 75sin29°/120

    Once you have the second angle Ø , it is easy to find the third angle and answer your question.

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    posted by Reiny
  2. so the second angle is 17.46 and the third angle is 133.54. then it travels to NortEast direction, am I correct?

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    posted by renzkie
  3. I am answering this from a Starbucks on my tablet and have no access to a calculator to check your answer.

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    posted by Reiny

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