document.write( "Question 451564: How to use Law of Sines?
\n" ); document.write( "Find the remaining sides and angles of the triangle, using law of sines:\r
\n" ); document.write( "\n" ); document.write( "A=10, A=30 degrees, B= 45 degrees
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Algebra.Com's Answer #310511 by Gogonati(855)\"\" \"About 
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Law of Sines is \"sinA%2Fa=sinB%2Fb=sinC%2Fc\", where A, B, and C are measures of \r
\n" ); document.write( "\n" ); document.write( "angles and a, b, and c are the lengths of sides of the triangle. \r
\n" ); document.write( "\n" ); document.write( "We know that A=30 degree, a=10cm, and B=45 degree. \r
\n" ); document.write( "\n" ); document.write( "Find first C=180-(45+30)=105 degree.\r
\n" ); document.write( "\n" ); document.write( "Substituting in the formula we get:\"sin%2830%29%2F10=sin%2845%29%2Fb=sin%28105%29%2Fc\"\r
\n" ); document.write( "\n" ); document.write( "therefore, \"b=10sin%2845%29%2Fsin%2830%29=10sqrt%282%29+cm\" and \r
\n" ); document.write( "\n" ); document.write( "\"c=10sin%28105%29%2Fsin%2830%29=19.3\" cm.
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