Multiple Choice Questions on The area of a rectangle whose one side is a is 2a2 What is the area of a square having one of the di........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The area of a rectangle whose one side is a is 2a2 What is the area of a square having one of the di...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    The area of a rectangle, whose one side is a is 2a2. What is the area of a square having one of the diagonals of the rectangle as side ?

    2a2

    Incorrect Answer

    3a2

    Incorrect Answer

    4a2

    Incorrect Answer

    5a2

    Correct Answer
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    Explanation:

    Given, one side of rectangle (let b) = a
    Area of rectangle = 2a2
    ∴ l × b = 2a2
    ⇒ l × a = 2a2
    ⇒ l = 2a

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