Question 1 of 10 · 0 correct so far
Difficulty: Medium
Short answer
An observer stands 40 m from the base of a tower. The angle of elevation to the top is 37°. The observer's eye is at ground level for this problem. Find the angle the other way: a second observer at the top of the 30.1 m tower looks down at the first observer. State the angle of depression, and justify it.
Fractions like 1 1/2, 9/6 and 3/2 are all accepted where they're equal.
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