document.write( "Question 317743: In a triangle the measure of the largest angle is 3 times the measure of the smallest angle. The measure of the remaining angle is twice the measure of the smallest angle. What is the measure of the longest angle? \n" ); document.write( "
| Algebra.Com's Answer #227526 by texttutoring(324)     You can put this solution on YOUR website! Let x = first angle \n" ); document.write( "Let y = second angle \n" ); document.write( "Let z = 3rd angle\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "We know that in a triangle, the 3 angles have to add up to 180 degrees:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x+y+z = 180\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "We also know that:\r \n" ); document.write( "\n" ); document.write( "z = 3x \n" ); document.write( "y = 2x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Plug this information into the other equation:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x + y + z = 180 \n" ); document.write( "x + 2x + 3x = 180 \n" ); document.write( "6x = 180 \n" ); document.write( "x = 30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This means y=2(30)=60 and z=3(30)=90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x=30 \n" ); document.write( "y=60 \n" ); document.write( "z=90 \n" ); document.write( " |