JEE Main & Advanced Mathematics Trigonometric Equations Question Bank Height and Distance

  • question_answer
    The angle of elevation of a tower at a point distant d meters from its base is 30°. If the tower is  20 meters high, then the value of d is [MP PET 1982, 88]

    A) \[10\sqrt{3}m\]

    B) \[\frac{20}{\sqrt{3}}m\]

    C) \[20\sqrt{3}m\]

    D) \[10\]m

    Correct Answer: C

    Solution :

    \[20\cot {{30}^{o}}=d\] \[\Rightarrow \] \[d=20\sqrt{3}\].

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