6th Class Mathematics Practical Geometry Question Bank Geometry

  • question_answer
    Two adjacent angles on a straight line are\[x{}^\circ \]and\[(2x-27){}^\circ \]then \[x=\]?

    A) \[57{}^\circ \]                       

    B) \[69{}^\circ \]

    C) \[77{}^\circ \]

    D) \[87{}^\circ \]

    Correct Answer: B

    Solution :

    \[{{x}^{o}}+{{(24-27)}^{o}}={{180}^{o}}\] \[3x-{{27}^{o}}={{180}^{o}}\] \[3x={{180}^{o}}+27\] \[x=\frac{207}{3}={{69}^{o}}\]


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