SOLUTION: A balloon is at an altitude of 2000ft. The angle of depression from the balloon to a large rock in the center of a pond is 22°30'. How far horizontally must the balloon move to be

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Question 983841: A balloon is at an altitude of 2000ft. The angle of depression from the balloon to a large rock in the center of a pond is 22°30'. How far horizontally must the balloon move to be directly over the rock?
(Enter your answer to the nearest foot.)
Thank you.
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
tan(22.5)=(2000ft)/x
(2000ft)tan(22.5)=x
4828.43 feet=x
ANSWER: The balloon must travel 4828 feet to be directly over the rock.