document.write( "Question 962467: Δ ABC is isosceles. Angles B and C are congruent. The m∠A = 40°, m∠B = (3x + 1)°. Find x.
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Algebra.Com's Answer #588058 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Δ ABC is isosceles. Angles B and C are congruent. The m∠A = 40°, m∠B = (3x + 1)°. Find x. \n" ); document.write( "------------------ \n" ); document.write( "In an isosceles triangle congruent angles must be equal in measure. \n" ); document.write( "-------------- \n" ); document.write( "Equation: \n" ); document.write( "3x+1 = 40 \n" ); document.write( "3x = 39 \n" ); document.write( "x = 13 \n" ); document.write( "---- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------- \n" ); document.write( " \n" ); document.write( " |