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8th Class Mathematics Practical Geometry Question Bank Geometry

  • question_answer
    In the given figure, AB is a diameter of a circle with centre O. If\[{{72}^{o}}\], find\[{{54}^{o}}\].                       

    A)  \[{{27}^{o}}\]                    

    B)  \[{{90}^{o}}\]

    C)  \[\angle BOD={{120}^{o}}\]                                

    D)  \[\angle ACD\]

    Correct Answer: A

    Solution :

    \[AB=CD\] \[{{180}^{o}}\] [Linear pair] \[{{360}^{o}}\] \[{{270}^{o}}\]  \[\angle DCA={{180}^{o}}\] We have, \[\angle EAB={{124}^{o}}\]          


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