document.write( "Question 390002: How can you tell if 2 angles are supplementary if you dont know their measures? \n" ); document.write( "
Algebra.Com's Answer #276468 by josmiceli(19441)\"\" \"About 
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If you call one angle \"x\", then the other
\n" ); document.write( "angle has to be \"180+-+x\"
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