document.write( "Question 1036185: Find Length of Island \"some \n" ); document.write( "
Algebra.Com's Answer #650830 by Alan3354(69443)\"\" \"About 
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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\n" ); document.write( "C = 90 degs
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\n" ); document.write( "PC = 5120 feet
\n" ); document.write( "angle PAC = 51.8 degs (I think that's what it says)
\n" ); document.write( "tan(51.8) = PC/AC
\n" ); document.write( "AC = 5120/tan(51.8)
\n" ); document.write( "AC =~ 4029 feet
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\n" ); document.write( "angle PBC = 27.3 degs
\n" ); document.write( "tan(27.3) = PC/BC
\n" ); document.write( "BC = 5120/tan(27.3)
\n" ); document.write( "BC =~ 9920 feet
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\n" ); document.write( "AB = 9920 - 4029 = 5891 feet
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