document.write( "Question 246307: In any isosceles triangle two angles are equal. The third angle of a certain isosceles triangle is 12 degrees more than four times the measure of one of the equal angles. Find the measure of one of the equal angles. \n" ); document.write( "
Algebra.Com's Answer #179912 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! a+a+c=180 \n" ); document.write( "c=12+4a \n" ); document.write( "sub \n" ); document.write( "2a+12+4a=180 \n" ); document.write( "6a=168 \n" ); document.write( "divide by 2 \n" ); document.write( "3a=84 \n" ); document.write( "a=84/3 \n" ); document.write( "a=28 equal angles \n" ); document.write( "2a=56 \n" ); document.write( "180-56=124=c third angle \n" ); document.write( "check \n" ); document.write( "c=12+4*28=112+12=124 \n" ); document.write( "check\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |