Asked by Tharu

A man, lying down on top of a cliff 40m high observes the angle of depression of a buoy to be 20°. If he us in line with the buoy, calculate the distance between the buoy and the foot of the cliff (which may be assumed to be vertical) to the nearest metre.
Answered by oobleck
40/d = tan20°
Answered by Alhaji
40m and 20
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