SOLUTION: Find Length of Island <IMG SRC="http://image.prntscr.com/image/256af53340544ce59056b845c9c4a30a.jpg" ALT="some text" WIDTH=700 HEIGHT=500>

Algebra ->  Triangles -> SOLUTION: Find Length of Island <IMG SRC="http://image.prntscr.com/image/256af53340544ce59056b845c9c4a30a.jpg" ALT="some text" WIDTH=700 HEIGHT=500>      Log On


   

Question 1036185: Find Length of Island some text
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Label the plane point P, the closest point A, the farthest B, and point under the plane C.
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C = 90 degs
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PC = 5120 feet
angle PAC = 51.8 degs (I think that's what it says)
tan(51.8) = PC/AC
AC = 5120/tan(51.8)
AC =~ 4029 feet
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angle PBC = 27.3 degs
tan(27.3) = PC/BC
BC = 5120/tan(27.3)
BC =~ 9920 feet
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AB = 9920 - 4029 = 5891 feet