document.write( "Question 1100120: ΔABC is an isosceles triangle in which angles B and C are congruent. If m∠B = (4x + 10)° and m∠C = (x - 31)°, find the measure of angle A. \n" ); document.write( "
Algebra.Com's Answer #714623 by josgarithmetic(39626)\"\" \"About 
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Congruent means that they have equal measures.\r
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\n" ); document.write( "\n" ); document.write( "\"4x%2B10=x-31\";
\n" ); document.write( "Solve for x.
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