document.write( "Question 310667: In a triangle,the sum of the interior angles is 180degrees. If angle A is three times as large as angle B,and angles B and C sum to 90 degree.What is the measure of each angle? \n" ); document.write( "
Algebra.Com's Answer #222164 by loni1234(7)![]() ![]() ![]() You can put this solution on YOUR website! a+b+c=180 \n" ); document.write( "a=3b \n" ); document.write( "b+c=90,\r \n" ); document.write( "\n" ); document.write( "because a=3b than 3b+b+c=180 \n" ); document.write( " b+c=90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "c=180-4b \n" ); document.write( "b+c=90\r \n" ); document.write( "\n" ); document.write( "because c=180-4b than b+180-4b=90 , -3b=-90, b=30,\r \n" ); document.write( "\n" ); document.write( "now c=180-4b=180-120=60 and a=3b=90.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a+b+c=180, 90+30+60=180 \n" ); document.write( " |