8th Class Mathematics Practical Geometry Question Bank Geometry

  • question_answer
    In the below drawn figure if \[{{130}^{o}}\],then \[{{50}^{o}}\] and \[{{120}^{o}}\] are respectively

    A)  \[\angle A={{80}^{o}}\] and \[\angle C={{35}^{o}}\]             

    B)  \[\angle EDB=\] and \[{{120}^{o}}\]

    C)  \[{{160}^{o}}\] and \[{{70}^{o}}\]                    

    D)  \[{{115}^{o}}\] and \[\Delta ABC\]

    Correct Answer: A

    Solution :

    We know that angle in a semicircle is a right angle. Hence,\[\angle 1=\angle 2\] Also \[\angle 3=\angle 5\] \[{{180}^{o}}\] \[\angle 1+\angle 3={{180}^{o}}\]         (\[\angle 5+\angle 2={{180}^{o}}\]\[1||m||n\])


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