document.write( "Question 976072: A triangle has sides measuring 28,34, and 47 what is the measure of the smallest angle? \n" ); document.write( "
Algebra.Com's Answer #597727 by FrankM(1040)\"\" \"About 
You can put this solution on YOUR website!
You know the law of cosines? \r
\n" ); document.write( "\n" ); document.write( "\"C%5E2+=+A%5E2%2BB%5E2-2AB+Cos+C\"\r
\n" ); document.write( "\n" ); document.write( "I know the angle opposite the smallest side is the smallest angle. 28.\r
\n" ); document.write( "\n" ); document.write( "\"28%5E2+=+34%5E2%2B47%5E2-2%2834%29%2847%29+Cos+C\"\r
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\n" ); document.write( "\n" ); document.write( "\"784+=+1156%2B2209-3196+Cos+C\"\r
\n" ); document.write( "\n" ); document.write( "And so - \r
\n" ); document.write( "\n" ); document.write( "\"-2581+=+-3196+Cos+C\"\r
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\n" ); document.write( "\n" ); document.write( "\"Cos+C+=+-2581%2F-3196\"\r
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\n" ); document.write( "\n" ); document.write( "\"Cos+C+=+.80757\"\r
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\n" ); document.write( "\n" ); document.write( "C = 36.14 degrees
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