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  3. 7th Class
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  5. Geometry

7th Class Mental Ability Geometry Question Bank Geometry

  • question_answer
    Find the value of x, from the figure given below.

    A) \[24{}^\circ \]                          

    B) \[26{}^\circ \]

    C) \[28{}^\circ \]                          

    D) \[30{}^\circ \]

    E) None of these

    Correct Answer: B

    Solution :

    Explanation \[\operatorname{x} + 30{}^\circ  + 3x + x + 20{}^\circ =180{}^\circ \] \[5x + 50{}^\circ  = 180{}^\circ \] \[\Rightarrow \,\,\,\,5x=130{}^\circ \] \[=\,\,x=26{}^\circ .\]


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