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9th Class Mathematics Quadrilaterals Question Bank Quadrilaterals

  • question_answer
    In figure, E and F are the mid-points of sides AB and AC of a\[\Delta ABC.\]If AB = 5 cm, BC = 5 cm     and AC = Q cm, then EF is equal to       

    A)  3 cm                           

    B)         2.5 cm            

    C)         4 cm                           

    D)         None of these

    Correct Answer: B

    Solution :

    In\[\Delta ABC,\] Given, E is mid-point of AB and F is mid-point of AC. Then, by mid-point theorem \[BC||EF\]and\[EF=\frac{1}{2}BC\] \[\therefore \]      \[EF=\frac{1}{2}(5)=2.5\,cm\]


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