document.write( "Question 123707: One angle of a triangle is 20 degrees. The second angle's measurement is four times the third. What is the measure of the third angle? \n" ); document.write( "
Algebra.Com's Answer #90758 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 20+4X+X=90 \n" ); document.write( "5X=90-20 \n" ); document.write( "5X=70 \n" ); document.write( "X=70/5 \n" ); document.write( "X=14 DEGREES IS THE MEASUREMENT OF THE THIRD ANGLE. \n" ); document.write( "PROOF \n" ); document.write( "20+4*14+14=90 \n" ); document.write( "20+56+14=90 \n" ); document.write( "90=90 \n" ); document.write( " |