document.write( "Question 368944: find the area of the triangle. a=6m,b=13m,angle opposite a=10degrees \n" ); document.write( "
Algebra.Com's Answer #262901 by Fombitz(32388)\"\" \"About 
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Use the law of sines,
\n" ); document.write( "\"a%2Fsin%28A%29=b%2Fsin%28B%29=c%2Fsin%28C%29\"
\n" ); document.write( "\"6%2Fsin%2810%29=13%2Fsin%28B%29\"
\n" ); document.write( "\"sin%28B%29=%2813%2F6%29sin%2810%29\"
\n" ); document.write( "\"sin%28B%29=0.3762\"
\n" ); document.write( "\"B=22.1\"degrees
\n" ); document.write( "Since
\n" ); document.write( "\"A%2BB%2BC=180\"
\n" ); document.write( "\"10%2B22.1%2BC=180\"
\n" ); document.write( "\"C=147.9\"
\n" ); document.write( "\"c%2Fsin%28147.9%29=6%2Fsin%2810%29\"
\n" ); document.write( "\"c=18.36\"
\n" ); document.write( "Use Heron's formula to find the area,
\n" ); document.write( "\"A=sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29\"
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\n" ); document.write( "\"s=%281%2F2%29%28a%2Bb%2Bc%29\"
\n" ); document.write( "\"s=%281%2F2%29%286%2B10%2B18.36%29\"
\n" ); document.write( "\"s=18.68\"
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\n" ); document.write( "\"A=sqrt%2818.68%2818.68-6%29%2818.68-10%29%2818.68-18.36%29%29\"
\n" ); document.write( "\"highlight%28A=20.75%29\"\r
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