document.write( "Question 304707: the measure of the second angle of a triangle is seven more than twice the measure of the first. the third angle is fifteen less than the first. find the meausres of all of the angles. \n" ); document.write( "
Algebra.Com's Answer #218199 by mananth(16946) You can put this solution on YOUR website! let the first angle be x deg\r \n" ); document.write( "\n" ); document.write( "The second angle = 2x+7\r \n" ); document.write( "\n" ); document.write( "Third angle = x-15\r \n" ); document.write( "\n" ); document.write( "The sum of all 3 angles = 180 deg.\r \n" ); document.write( "\n" ); document.write( "x+2x+7+x-15= 180 \r \n" ); document.write( "\n" ); document.write( "4x-8 =180 \n" ); document.write( "4x=188\r \n" ); document.write( "\n" ); document.write( "x= 47 deg\r \n" ); document.write( "\n" ); document.write( "2x+7= 101 deg\r \n" ); document.write( "\n" ); document.write( "Third angle = 32 deg\r \n" ); document.write( "\n" ); document.write( "Ananth \n" ); document.write( " |