Multiple Choice Questions on The angle of elevation of the sun when the length of the shadow of a tree is equal to the height of ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The angle of elevation of the sun when the length of the shadow of a tree is equal to the height of ...........

Quantitative Aptitude ( CCS) Trignometry
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    The angle of elevation of the sun, when the length of the shadow of a tree is equal to the height of the tree, is:

    40

    Incorrect Answer

    30

    Incorrect Answer

    60

    Incorrect Answer

    45

    Correct Answer
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    Explanation:


    Consider the diagram shown above where QR represents the tree and PQ represents its shadow
    We have, QR = PQ
    Let angleQPR = θ
    tanθ=QR/PQ=1(since QR = PQ)
    => θ = 45°
    i.e., required angle of elevation = 45°

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