Question

    Rohit is climbing on a 30 metres long rope, which is

    tied from the top of a vertical pole to the ground. Find the height of the pole if the angle made by the rope with the ground is 30o.
    A 60 m Correct Answer Incorrect Answer
    B 30√3 m Correct Answer Incorrect Answer
    C 15 m Correct Answer Incorrect Answer
    D 30√3 m Correct Answer Incorrect Answer

    Solution

    AB = length of the pole And, AC = length of the rope = 30 metres In right triangle ABC; sin30o = AB/AC Or, (1/2) = AB/30 So, AB = 30/2 = 15 metres

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