There is an escalator that is 1090.3 feet long and drops a vertical distance of 193.4 feet. What is

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There is an escalator that is 1090.3 feet long and drops a vertical distance of 193.4 feet. What is its angle of depression?

The sin of the angle A is the length of the opposite side / hypotenuse.
sin(A) = Opposite / Hypotenuse
sin(A) = 193.4 / 1090/3
sin(A) = 0.1774

We want the arcsin(0.1774).
A = 10.1284