document.write( "Question 63132: \"In the triangle ABC, measure of angle A= 60 degrees and the measure of angel C = 80 degrees. The exterior angle at B measures(x+10). \r
\n" ); document.write( "\n" ); document.write( "What is the value of x?\"
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Algebra.Com's Answer #43965 by stanbon(75887)\"\" \"About 
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Angle B = 180-(60+80)=40 degrees
\n" ); document.write( "The exterior angle at B is 180-40=140 degrees
\n" ); document.write( "x+10=140
\n" ); document.write( "x=130
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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