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9th Class Mathematics Lines and Angles Question Bank Lines and angles

  • question_answer
    In the adjoining figure, \[\mathbf{AE}\parallel \mathbf{CD}\] and \[\mathbf{BC}\parallel \mathbf{ED}\], then y = ?

    A)  \[{{60}^{{}^\circ }}\]                       

    B)  \[{{70}^{{}^\circ }}\]

    C)  \[{{90}^{{}^\circ }}\]                                   

    D)  \[{{75}^{{}^\circ }}\]

    Correct Answer: B

    Solution :

    (b): \[\angle ABP=\angle CDR={{110}^{{}^\circ }}\] \[y={{70}^{{}^\circ }}\]                (\[\therefore \]\[\angle CDR+\angle CDS={{180}^{{}^\circ }}\])


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