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    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╦Ъ Correct Answer Incorrect Answer
    B 30╦Ъ Correct Answer Incorrect Answer
    C 60╦Ъ Correct Answer Incorrect Answer
    D 45╦Ъ Correct Answer Incorrect Answer

    Solution

    In тИЖ ABC tanтБбθ= AB/BC = 54/(18√3) tanтБбθ= 3/√3 = √3 tanтБбθ= tanтБб(60╦Ъ) θ = 60╦Ъ

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