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    Lavkush kumar's image
    Lavkush kumar
    （3rd ka answer ）B + 120 = 180 （ linear pair ） 

    B = 180 - 120 

    B = 60 

    C + 120 = 180 （ linear pair ）

     C = 180 - 120 

    C = 60 

    A + B +  C  = 180 （ angle sum property ）

     A + 60 + 60 = 180  

    A = 150 - 120 = 60 

    Written on Aug. 28, 2021, 10:31 p.m.

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