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8th Class Mathematics Practical Geometry Question Bank Geometry

  • question_answer
    In the given figure, O is the centre of a circle. If \[\Delta ABC\] and \[\angle BAC\] then \[\angle ECD={{30}^{o}}\] =_____

    A)  \[\angle BAC\]                    

    B)  \[x={{68}^{o}}\]

    C)  \[\Delta ABC\]                    

    D)  \[\Delta ABC\]

    Correct Answer: C

    Solution :

    Angle in a semicircle is a right angle. So    \[AC\ne BD\] In\[ABCD\], \[\Rightarrow \] \[{{90}^{o}}\] \[\square ABCD\] \[\Rightarrow \]  \[\angle 1=\angle 2=\angle 3=\angle 4={{90}^{o}}\]


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