document.write( "Question 631756: The measure of the angles of a triangle are 4x-1, 9x+1, and 5x. The triangle is? \n" ); document.write( "
Algebra.Com's Answer #397905 by benni1013(206) ![]() You can put this solution on YOUR website! What do we know: \n" ); document.write( "1) The sum of the angles of a triangle equals 180 degrees.\r \n" ); document.write( "\n" ); document.write( "THE SETUP \n" ); document.write( "Angle 1 + Angle 2 + Angle 3=180\r \n" ); document.write( "\n" ); document.write( "PLUG AND CHUG P1: \n" ); document.write( "(4x-1)+(9x+1)+(5x+0*)=180>>4x+9x+5x=180>>18x=180>>x=10 \n" ); document.write( "We now know what x equals. Plug x back into originals to find the answer.\r \n" ); document.write( "\n" ); document.write( "*Acting as a placeholder.\r \n" ); document.write( "\n" ); document.write( "PLUG AND CHUG P2: \n" ); document.write( "4(10)-1=39 ANGLE 1; 9(10)+1=91 ANGLE 2; 5(10)=50 ANGLE 3\r \n" ); document.write( "\n" ); document.write( "CHECK: \n" ); document.write( "Make sure your three angles add up to 180 \n" ); document.write( "39+91+50=180\r \n" ); document.write( "\n" ); document.write( "The triangle is obtuse because one angle is obtuse. \n" ); document.write( " |