document.write( "Question 309773: Hi: Need help with the following.,.,In triangle ABC, mLA=39 and mLC=89. calculate mLB. Thanks \n" ); document.write( "
Algebra.Com's Answer #221677 by ankor@dixie-net.com(22740)\"\" \"About 
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,In triangle ABC, mLA=39 and mLC=89. calculate mLB.
\n" ); document.write( "B = 180 - 39 - 89
\n" ); document.write( "B = 52 degrees
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