How Does Yacht Movement Affect Angle of Depression?

[Ruturaj Vaidya]

From the top of a cliff, which runs North-South, the angle of depression of a yacht, 200 m out to sea and due east of the observer is 20 degress. When the observer next looks at the yacht he notices it has sailed 150m parallel to the cliff. Find:

The angle of depression of the yacht from the top of the cliff when it is in its new position, to the nearest degree.The correct answer is 16 degrees

 

[SammyS]

From the top of a cliff, which runs North-South, the angle of depression of a yacht, 200 m out to sea and due east of the observer is 20 degress. When the observer next looks at the yacht he notices it has sailed 150m parallel to the cliff. Find:

The angle of depression of the yacht from the top of the cliff when it is in its new position, to the nearest degree.The correct answer is 16 degrees

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