document.write( "Question 391965: In a triangle ABC, angle B is 4 times angle A and angle C is 9 degrees less than 5 times angle A.
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document.write( "Find the size of the angles.
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document.write( "A
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document.write( "B
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document.write( "C \n" );
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Algebra.Com's Answer #278186 by edjones(8007)![]() ![]() You can put this solution on YOUR website! b=4a, c=5a-9 \n" ); document.write( "a+4a+5a-9=180 \n" ); document.write( "10a-9=180 \n" ); document.write( "10a=189 \n" ); document.write( "a=18.9 \n" ); document.write( "b=75.6 \n" ); document.write( "c=85.5 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |