document.write( "Question 1182638: Given triangle ABC, point E is along side AC and point
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document.write( "D is along side BC. Line BE and AD are the angle
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document.write( "bisectors of angle B and A respectively. If the angle BEC
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document.write( "= 75° and angle ADC = 84°, find the ACB. \n" );
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Algebra.Com's Answer #812735 by greenestamps(13203)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Let angle ABC be 2x degrees \n" ); document.write( "Let angle BAC be 2y degrees \n" ); document.write( "Then the angle we are to find, ACB, is (180-(2x+2y)) degrees. \n" ); document.write( "Angles EBA and EBC are each x degrees; angles DAB and DAC are each y degrees. \n" ); document.write( "Angle BEC is 75 degrees, so angle BEA is 180-75=105 degrees; angle ADC is 84 degrees, so angle ADB is 180-84=96 degrees. \n" ); document.write( "In triangle ABD, \n" ); document.write( "96+2x+y=180 [1] \n" ); document.write( "In triangle ABE, \n" ); document.write( "105+x+2y=180 [2] \n" ); document.write( "Solve the pair of equations [1] and [2] to find x and y; then use those to find the answer to the problem. \n" ); document.write( " \n" ); document.write( " |