Draw your triangle...
Decide whether you are going to use Trigonometric ratios, Sine Law, or Cosine Law
An aircraft takes off from an airstrip at an average speed of 20km/hr on a bearing of 052 0 for 3 hours. It then changes course and flies on a bearing of 0280 at an average speed of 3okm/hr for another 1 1 / 2 hours. Find;
a. its distance from the starting point,
b. the bearing of the aircraft from the airstrip.
5 answers
Cosine rule
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answer
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