Multiple Choice Questions on A telegraph post gets broken at a point against a storm and its top touches the ground at a distance........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A telegraph post gets broken at a point against a storm and its top touches the ground at a distance...........

Quantitative Aptitude ( CCS) Height and Distance
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    A telegraph post gets broken at a point against a storm and its top touches the ground at a distance 20 m from the base of the post making an angle 30° with the ground. What is the height of the post?

    40 /√3 m

    Incorrect Answer

    20√3 m

    Correct Answer

    40√3 m

    Incorrect Answer

    30 m

    Incorrect Answer
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    Explanation:

    Given, BC = 20 m
    ∠ACB = 30°
    Total height of the telegraph post is (AB + CA) = ?
    In Δ ABC, tan 30° = AB/BC

    By: Amit Kumar
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