document.write( "Question 117640: the measure of each of the congruent angles of an isosceles triangle is 9 degrees less than 4 times the vertex angle. find the measure of each angle of the triangle \n" ); document.write( "
Algebra.Com's Answer #85690 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! let x=\"vertex angle\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "\"the measure of each of the congruent angles of an isosceles triangle is 9 degrees less than 4 times the vertex angle\" \n" ); document.write( "___ 4x-9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2(4x-9)+x=180 ___ 8x-18+x=180 ___ 9x=172 \n" ); document.write( " |