document.write( "Question 1375: obtuse isosolese triangle angles 120/30/30.equal legs 7.what is formula to determine third (longest leg/base)? \n" ); document.write( "
Algebra.Com's Answer #334367 by cleomenius(959)\"\" \"About 
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You can also use the law of sines,\r
\n" ); document.write( "\n" ); document.write( "7/sine 30 = x/sine 120 \r
\n" ); document.write( "\n" ); document.write( "7/.5 = x/.866
\n" ); document.write( "x = 12.124
\n" ); document.write( "Cleomenius.\r
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