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8th Class Mathematics Practical Geometry Question Bank Geometry

  • question_answer
    In the adjoining figure, it is given that D and E are the mid-points of AB and AC, respectively If \[\frac{4}{6}=\frac{8}{EA}\], \[\Rightarrow \]then \[EA=12cm.\]____

    A)  \[\Delta ABC\]            

    B)  \[{{15}^{o}}\]

    C)  \[{{30}^{o}}\]                                

    D)  \[{{45}^{o}}\]

    Correct Answer: D

    Solution :

    In,  \[{{130}^{o}}\] ( \[{{50}^{o}}\] sum of angles of \[{{120}^{o}}\]) \[\angle A={{80}^{o}}\] DB is transversal, we have\[\angle C={{35}^{o}}\]. \[\angle EDB=\]           \[{{120}^{o}}\]             \[{{160}^{o}}\]             \[{{70}^{o}}\]


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