Ans 30


30 .       F i n d   t h e   v a l u e   o f   1   + 2

 
A .         150 ° B .         60 ° C .       130 ° D .         110 °

Dear Student,

In the Given Figure ABCDEFGHHence ABC=BCD =1 =60°          Alternate interior anglesBCD=FGH=CFE=60°        Corresponding anglesHence in FGHHFG+FGH+GHF=180°     Sum of all three angle is equal to 18050°+1+2=180°                     FGH=BCD=1  1+2=180° -50°1+2=130° Answer 


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