Multiple Choice Questions on When the sun 39 s altitude changes from 30 deg to 45 deg the length of the shadow of a tower decreas........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

When the sun 39 s altitude changes from 30 deg to 45 deg the length of the shadow of a tower decreas...........

Quantitative Aptitude ( CCS) Trignometry
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    When the sun's altitude changes from 30° to 45°, the length of the shadow of a tower decreases by 50m. What is the height of the tower?

    38 m

    Incorrect Answer

    120.6 m

    Incorrect Answer

    68.3 m

    Correct Answer

    55.9 m

    Incorrect Answer
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    Explanation:

    Let AD be the tower, BD be the initial shadow and CD be the final shadow.
    Given that BC = 50 m, ABD = 30°, ACD = 45°,

    By: Munesh Kumari
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