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     EduGorilla 
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    Let A1 be a square whose side is a metres. Circle C1 circumscribes the square A1 such that all its vertices are on C1. Another square A2 circumscribes C1. Circle C2 circumscribes A2, and A3 circumscribes C2, and so on. If DN is the area between the square AN and the circle CN, where N is a natural number, then the ratio of the sum of all DN to D1 is:

    Options :-

    1. 1
    2. π/2−1

    3. Infinity

    4. 2
    5. None of the above

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