document.write( "Question 349646: Two angles are supplementary and one angle is 40 degrees less then than other, Find the obtuse angle \n" ); document.write( "
Algebra.Com's Answer #249907 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! Hi, \n" ); document.write( "Note: the sum of supplementary angles is 180 \n" ); document.write( "Let x be the larger. (x-40) the other angle. \n" ); document.write( ". \n" ); document.write( "x + (x-40) = 180 \n" ); document.write( ". \n" ); document.write( "2x - 40 = 180 \n" ); document.write( ". \n" ); document.write( "2x = 220 \n" ); document.write( "x = 110 is the obtuse angle \n" ); document.write( "Definition of an obtuse angle. An angle between (but not including) 90deg and 180 deg \n" ); document.write( ". \n" ); document.write( "check you answer \n" ); document.write( "112 + 70 = 180 \n" ); document.write( " |