document.write( "Question 1014075: I need some help with solving problem : In triangle ABC the measurement of angle A is 5 degrees more than 3 times the measure of angle B. Angle C measures 20 degrees less than angle B to determine the measurement of angles ABC? \n" ); document.write( "
Algebra.Com's Answer #630433 by stanbon(75887) ![]() You can put this solution on YOUR website! I need some help with solving problem : In triangle ABC the measurement of angle A is 5 degrees more than 3 times the measure of angle B. Angle C measures 20 degrees less than angle B to determine the measurement of angles A,B,C? \n" ); document.write( "------ \n" ); document.write( "Equations: \n" ); document.write( "A = 3*B + 5 \n" ); document.write( "C = B-20 \n" ); document.write( "A + B + C = 180 \n" ); document.write( "------------------------ \n" ); document.write( "Substitute for A and C; solve for \"B\":: \n" ); document.write( "3B+5 + B + B-20 = 180 \n" ); document.write( "5B = 165 \n" ); document.write( "B = 33 Degrees \n" ); document.write( "A = 3B+5 = 99+5 = 104 Degrees \n" ); document.write( "C = B-20 = 33-20 = 13 Degrees \n" ); document.write( "--------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |