document.write( "Question 466600: ∠DEF and ∠ABC are supplementary angles and ∠DEF is four times as large as ∠ABC. Determine the measure of each angle. For some reason I have major problems with these lines. Any help, please. \n" ); document.write( "
Algebra.Com's Answer #319867 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! ∠DEF and ∠ABC are supplementary angles and ∠DEF is four times as large as ∠ABC. Determine the measure of each angle \n" ); document.write( "----- \n" ); document.write( "Equations: \n" ); document.write( "E + B = 180 degrees \n" ); document.write( "E = 4B \n" ); document.write( "--- \n" ); document.write( "Substitute for \"E\" and solve for \"B\"; \n" ); document.write( "4B + B = 180 \n" ); document.write( "5B = 180 \n" ); document.write( "ABC = 36 degrees \n" ); document.write( "--- \n" ); document.write( "Solve for E: \n" ); document.write( "DEF = 180-36 \n" ); document.write( "DEF = 144 degrees \n" ); document.write( "------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |