Multiple Choice Questions on In the given figure below ang AOB 48 deg and AC and OB intersect each other at right angles What is ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

In the given figure below ang AOB 48 deg and AC and OB intersect each other at right angles What is ...........

Quantitative Aptitude ( CCS) Geometry
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    In the given figure below, ∠AOB = 48° and AC and OB intersect each other at right angles. What is the measure of ∠OBC? (O is the centre of the circle)

    33°

    Incorrect Answer

    44°

    Incorrect Answer

    55°

    Incorrect Answer

    66°

    Correct Answer
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    Explanation:
    ∠AOB = 48°
    So, ∠ACB = 1/2∠AOB
    = 1× 48°/2 = 24°
    (As angles made by same arc AB)
    Given AC and OB intersect each other at right angle.
    ∠ CQB = 90°
    ∠ CBQ = 180° – (90° + 24°) = 66°
    so , ∠ OBC = 66

    By: MIRZA SADDAM HUSSAIN
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