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7th Class Mathematics The Triangle and its Properties Question Bank Triangles

  • question_answer
    From the figure given, which of the following statements is true?

    A)                  \[\angle x+\angle y=\angle 1+\angle 3\]

    B)                  \[\angle y=\angle 2\]

    C)                  \[\angle x=\angle 1\]

    D)                  \[\angle x+\angle y=\angle 1+\angle 2\]  

    Correct Answer: D

    Solution :

     \[\angle x+\angle y\] forms the exterior angle of \[\Delta ABC,\] which is equal to the sum of interior opposite angles \[\angle 1\]and \[\angle 2\].


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