Question

A helicopter flies on a bearing of 200° from A to B, where AB = 70 km. It then flies on a bearing of 150° from B to C, where C is due south of A. Work out the distance of C from A.

Answer 1

Answer:

The helicopter moves from A to B on a bearing of 200, so the point B should actually be on the other side of A as 200>180.You should end up with a triangle with C directly below A, where AB=70km. you then need to work out angles ABC and BCA so you can use the sine rule to find the length of AC.

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