Question 1192518
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In this problem,


    A + B + C = 180  degrees,

    B = C

    A = 30 degrees.


Therefore

   30 + 2B = 180

        2B = 180 - 30

        2B =    150

         B =    150/2 = 75.


<U>ANSWER</U>.  B = C = 75 degrees.   Angles B and C are congruent and each of them has the measure of 75 degrees.
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Solved.