Multiple Choice Questions on Diagonals of a Trapezium ABCD with AB CD intersect each other at the point O If AB 2CD then the rati........... for SSC CGL Exam Preparation

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Multiple Choice Questions

Diagonals of a Trapezium ABCD with AB CD intersect each other at the point O If AB 2CD then the rati...........

Quantitative Aptitude (CGL) Coordinate Geometry
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    Diagonals of a Trapezium ABCD with AB CD intersect each other at the point O. If AB = 2CD, then the ratio of the areas of ∠AOB and ∠COD is

    4:1

    Correct Answer

    1:16

    Incorrect Answer

    1:4

    Incorrect Answer

    16:1

    Incorrect Answer
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    Explanation:


    n∠DOC& AOB 
    ∠A=∠C(alternate angle)
    ∠B=∠D
    ∠AOB=∠COD
    So,
    ∠DOC∼ AOB
    In similar triangle ratio of area is equal to the ratio of square of
    corrosponding sides ar?AOB/ar?COD=
    AB^2/CD^2=2^2/1^2
    =4/1=4:1

    By: MIRZA SADDAM HUSSAIN
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