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 #834332 by Alan3354(69443)\"\" \"About 
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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
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\n" ); document.write( "Hint:
\n" ); document.write( "Maybe B = 15 degs?
\n" ); document.write( "Does 78 + 15 = 90?
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