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The area of a circle is 220\ c m^2 . The...

The area of a circle is `220\ c m^2` . The area of a square inscribed in it is (a) `49\ c m^2` (b) `70\ c m^2` (c) `140\ c m^2` (d) `150\ c m^2`

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The correct Answer is:
`140cm^(2)`
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