document.write( "Question 744621: In triangle ABC, angle A is 30 more than angle B. Angle C equals the sum of angle A and B. Find the measure of each of the three angles.
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Algebra.Com's Answer #453466 by sachi(548) You can put this solution on YOUR website! In triangle ABC, angle A is 30 more than angle B. \n" ); document.write( "if B=x then A=x+30 \n" ); document.write( "Angle C equals the sum of angle A and B. \n" ); document.write( "so C=x+x+30 \n" ); document.write( "now A+B+C=180 \n" ); document.write( "so x+30+x+x+x+30=180 \n" ); document.write( "or 4x+60=180 \n" ); document.write( "or 4x=180-60=120 \n" ); document.write( "or x=30=B \n" ); document.write( "so A=30+30=60 & C=30+60=90 \n" ); document.write( " |