Multiple Choice Questions on Two chords AB and CD of a circle with centre O intersect at P If ang APC 40 deg Then the value of an........... for SSC CGL Exam Preparation

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Multiple Choice Questions

Two chords AB and CD of a circle with centre O intersect at P If ang APC 40 deg Then the value of an...........

Quantitative Aptitude (CGL) Coordinate Geometry
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    Two chords AB and CD of a circle with centre O intersect at P. If ∠APC = 40°. Then the value of ∠AOC + ∠BOD is

    50°

    Incorrect Answer

    60°

    Incorrect Answer

    80°

    Correct Answer

    120°

    Incorrect Answer
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    Explanation:

    ∠BOC=2∠BAC 
    ∠AOD=2∠ACD
    ∠BOC+?AOD=2(∠BAC+∠ACD)
    =2∠BPC
    30°+20°=2∠BPC
    ∠BPC=50°/2
    ∠BPC=25°

    By: MIRZA SADDAM HUSSAIN
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