8th Class Mathematics Sample Paper Mathematics Sample Paper-7

  • question_answer
    Find the altitude AD of an isosceles\[~\Delta \mathbf{ABC}\] with sides 2a, 2a and a, if AB = AC.

    A) \[a\sqrt{15}\]    

    B) \[\frac{a\sqrt{15}}{2}\]

    C) \[\frac{a\sqrt{5}}{3}\]

    D) \[\frac{a\sqrt{15}}{7}\]

    E) None of these

    Correct Answer: B


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