maths methods
posted by dd .
Find the angle of depression from top of a 500 m long chairlift with a vertical height of100 m

Here height = 100 m.
length of cable = 500
angle of depression, θ = sin^{1}(100/500)
If the length of the chairlift is measured horizontally, then θ would be tan^{1}(100/500)
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