inscribed angles
posted by lilman .
A satellite, B is 17,000 miles from the horizon of Earth, Earth's radius is about 4,000 miles. Find the approximate distance the satellite is from the Earths surface.
possilbe answers
13,464
17,464
20,957
21,000
I do not understand how to do these problems

If I understand you correctly the distance you seek is
d = sqrt(17000^2  4000^2)  4000 
Clearly, I did not understand you. But after reviewing the scenario, the answer is clearly
d = sqrt(17000^2 + 4000^2)4000 = 13,464 
a satellite is 6,800 miles from the horizon of earth. earths radius is about 4,000 miles. find the approximate distance the satellite is from the point directly below it on earths surface?
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