document.write( "Question 1161720: The angle of elevation of point C from point B is 29 degrees and 42 minutes. The angle of elevation of point C from another point A, which is 31.2 m directly below B, is 59 degrees and 23 minutes. How high is C from the horizontal line through A? \n" ); document.write( "
Algebra.Com's Answer #785432 by KMST(5328)\"\" \"About 
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\"29%5Eo\"\"%2242%27%22=%2829%2B42%2F60%29%5Eo=29.7%5Eo\" and \"59%5Eo\"\"%2223%27%22=%2859%2B23%2F60%29%5Eo=approximately59.38%5Eo\" (rounded)
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\n" ); document.write( " Consider the right triangles ACE and BCD.
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\n" ); document.write( "\"CD=h\" , \"CE=h%2B31.2m\" and \"BC=d\" , so \"tan%2859.38%5Eo%29=%28h%2B31.2m%29%2Fd\" and \"tan%2829.7%5Eo%29=h%2Fd\"
\n" ); document.write( "so
\n" ); document.write( "\"tan%2859.38%5Eo%29%2Ftan%2829.7%5Eo%29=%28h%2B31.2m%29%2Fh\" --> \"1.6898%2F0.5704=1%2B31.2m%2Fh\" --> \"2.96254=1%2B31.2m%2Fh\" --> \"1.96254=31.2m%2Fh\" --> \"h=31.2m%2F1.96254\"
\n" ); document.write( "Rounding, we get \"h=15.9m\" and \"h%2B31.2m=15.9m%2B31.2m=highlight%2847.1m%29\"\r
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