Circle inside a square, triangle or rectangle: area left over

1. A.
   $148\ m^2$
2. B.
   $168\ m^2$
3. C.
   $678\ m^2$
4. D.
   $682\ m^2$

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1. A.
   $100.66\ \text{cm}^2$
2. B.
   $148.2\ \text{cm}^2$
3. C.
   $200.3\ \text{cm}^2$
4. D.
   $155.6\ \text{cm}^2$

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1. A.
   $168.25\ \text{cm}^2$
2. B.
   $56.78\ \text{cm}^2$
3. C.
   $161.54\ \text{cm}^2$
4. D.
   $64.26\ \text{cm}^2$

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1. A.
   $33.3\%$
2. B.
   $26.18\%$
3. C.
   $28.35\%$
4. D.
   $31.42\%$

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