document.write( "Question 489263: an angle measures 51 degrees, what is the measure of its supplementary angle? \n" ); document.write( "
Algebra.Com's Answer #334053 by cleomenius(959)\"\" \"About 
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180 - 51 = 129 degrees.
\n" ); document.write( "The supplement of 51 degrees is 129 degrees.
\n" ); document.write( "Cleomenius.
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