document.write( "Question 1027630: http://prntscr.com/an0h5g\r
\n" ); document.write( "\n" ); document.write( "Out of curiosity, why can't cosine be used to solve this? \r
\n" ); document.write( "\n" ); document.write( "Why can't the hypotenuse be used to figure out how tall the shorter building is? \r
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Algebra.Com's Answer #642865 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "You can't use the cosine or the sine because they involve\r\n" );
document.write( "the hypotenuse.  You neither know the hypotenuse nor is\r\n" );
document.write( "the hypotenuse the side that you want to find. \r\n" );
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document.write( "You know the angle and the adjacent side only, and you want \r\n" );
document.write( "to find the opposite x. So you use whichever one of the three \r\n" );
document.write( "main trig ratios that has both the side given 51m and the side\r\n" );
document.write( "you want to find as a numerator and denominator.  That is the \r\n" );
document.write( "tangent because tangent = opposite/adjacent.    \r\n" );
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document.write( "Again, always pick the trig ratio that has both the known side \r\n" );
document.write( "and the side you want to find as a numerator and denominator.  \r\n" );
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document.write( "Edwin
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