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7th Class Mathematics Lines and Angles Question Bank Lines and Angles

  • question_answer
    In the figure, \[AB||CD\] and XY is the transversal. Which of the following is incorrect?

    A)  \[p={{115}^{o}}\]                           

    B)  \[q={{115}^{o}}\]  

    C)  \[q={{65}^{o}}\]             

    D)         \[r={{115}^{o}}\]

    Correct Answer: B

    Solution :

     \[{{115}^{o}}\] and q are interior angles on the same side of the transversal. So, \[{{115}^{o}}+q={{180}^{o}}\] \[\Rightarrow \] \[q={{180}^{o}}-{{115}^{o}}={{65}^{o}}\]


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