document.write( "Question 874847: In ABC the exterior angle adjacent to angleC measures 120 degrees. If the measure angel A-2x and the measure of B equals x+15. Find measure of angles ABC \n" ); document.write( "
Algebra.Com's Answer #527793 by harpazo(655) You can put this solution on YOUR website! Exterior angle = the sum of angles A and B.\r \n" ); document.write( "\n" ); document.write( "120 = 2x + x+15\r \n" ); document.write( "\n" ); document.write( "120 = 3x + 15\r \n" ); document.write( "\n" ); document.write( "120-15 = 3x\r \n" ); document.write( "\n" ); document.write( "105 = 3x\r \n" ); document.write( "\n" ); document.write( "105/3 = 35\r \n" ); document.write( "\n" ); document.write( "Angle A = 2(35)\r \n" ); document.write( "\n" ); document.write( "Angle A = 70°\r \n" ); document.write( "\n" ); document.write( "Angle B = 35 + 15\r \n" ); document.write( "\n" ); document.write( "Angle B = 50°\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |