document.write( "Question 1060800: In triangle ABC and triangle DEF, mA=mD and mB=mE. Find mF if an exterior
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document.write( "angle at A measures 107, mB=(5x 2) , and mC=(5x 5) \n" );
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Algebra.Com's Answer #675651 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! Exterior angles add to 360 \n" ); document.write( "we know one is 107, so 5x+2 and 5x+5=253, what is left \n" ); document.write( "That is 10x+7=253 \n" ); document.write( "10x=246 \n" ); document.write( "x=24.6 \n" ); document.write( "One is 125 (mB) and the other is 128 (mC), substituting 123 for 5x. \n" ); document.write( "Note: I put in the plus sign. If they are minus, the answer will be different. \n" ); document.write( " |