document.write( "Question 1177271: What is the complement and supplement of (x + y)°? \n" ); document.write( "
Algebra.Com's Answer #805785 by math_helper(2461)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "The complement of an angle A is 90-A. \"Complementary angles add to 90 degrees\"
\n" ); document.write( "The supplement of an angle A is 180-A. \"Supplementary angles add to 180 degrees\" \r
\n" ); document.write( "\n" ); document.write( "It is best to memorize this. \r
\n" ); document.write( "\n" ); document.write( "For the problem you posted, just replace A with \"(x+y)\" and you are done. \n" ); document.write( "
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