In identifying whether the given angle is an angle of elevation or an angle of depression: Identify the horizontal line of sight. Usually, it is the horizontal line in the figure. Identify whether the given object is above or below the horizontal line. If the object is above the horizontal line, then use angle of elevation. If the object is below the horizontal line, then use angle of depression.
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Answer:
the term angle of elevation denotes the angle from the horizontal upward to an object an observer's line of sight would
be above the horizontal.
the term angle of depression denotes the angle from the horizontal downward to an object.
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