document.write( "Question 1183313: Two angles are supplementary, if and only if, their sum is 180 ͦ. \n" ); document.write( "
Algebra.Com's Answer #813562 by ikleyn(52910)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Correct.\r
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\n" ); document.write( "\n" ); document.write( "To learn about supplementary angles,  read the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Angles basics \r
\n" ); document.write( "\n" ); document.write( "    - HOW TO solve problems on supplementary, complementary or vertical angles - Examples\r
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\n" ); document.write( "\n" ); document.write( "Consider these lessons as your handbook,  textbook,  guide,  tutorials and  (free of charge)  home teacher.\r
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