New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    If a pole of 54m height casts a shadow of 18

    >`sqrt(3)` m long on the ground. Then the Sun’s angle of elevation at that instant is
    A 90˚ Correct Answer Incorrect Answer
    B 30˚ Correct Answer Incorrect Answer
    C 60˚ Correct Answer Incorrect Answer
    D 45˚ Correct Answer Incorrect Answer

    Solution

    In ∆ ABC tan⁡θ= AB/BC = 54/(18√3) tan⁡θ= 3/√3 = √3 tan⁡θ= tan⁡(60˚) θ = 60˚

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