document.write( "Question 1200257: two angles are supplementary if the sum of their measures is 180. angles A and B are supplementary. if the measure of angle A is 78 write and solve an addition equation to find the measure of angle B \n" ); document.write( "

Algebra.Com's Answer #834333 by ikleyn(52797) $\"\"$ $\"About$

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document.write( "     A + B = 180 degrees.\r\n" );
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document.write( "    78 + B = 180 degrees.\r\n" );
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document.write( "         B = 180 - 78 degrees.\r\n" );
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document.write( "         B =    102   degrees.\r\n" );
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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( "    - Vertical angles \r
\n" ); document.write( "\n" ); document.write( "    - HOW TO solve problems on supplementary, complementary or vertical angles - Examples\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on supplementary and complementary angles
\n" ); document.write( "in this site.\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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