Multiple Choice Questions on A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot...........

Quantitative Aptitude ( CCS) Height and Distance
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    A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot of the tower. On advancing 100 m towards it, the tower is found to subtend an angle twice as before. The height of the tower is

    80m

    Correct Answer

    100m

    Incorrect Answer

    160m

    Incorrect Answer

    200m

    Incorrect Answer
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    Explanation:

    Given, BC = 160 m    and    CD = 100 m
    ∴  BD = BC – CD = 160 – 100 = 60 m
    Let, the height of the tower, AB = h metre
    And, ∠ACB = Θ    and    ∠ADB = 2Θ
    In ΔABC,

    By: Amit Kumar
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