SOLUTION: form a point 100 meter above the ground ,the angle of depression of the two objects due south on the ground are 60° and 45° . the distance between the object is?
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Question 322099: form a point 100 meter above the ground ,the angle of depression of the two objects due south on the ground are 60° and 45° . the distance between the object is? Answer by galactus(183) (Show Source):
You can put this solution on YOUR website! Suppose you were standing on the 'cliff' 100 meters above the ground and looking striaght ahead toward the horizon, then you looked down 45 degrees. That is the angle of depression.
So, this is just the law of tangents.
100tan(45)-100cot(60)==42.265 meters apart
or, another way
100tan(45)-100tan(30)=42.265 meters apart.
