Equal circles touching each other with centres at polygon vertices: area enclosed

1. A.
   $6(\sqrt{3}\pi - 2)$ square units
2. B.
   $6(2\pi - \sqrt{3})$ square units
3. C.
   $\frac{49}{8}(2\sqrt{3} - \pi)$ square units
4. D.
   $\frac{49}{8}(\sqrt{3} - \pi)$ square units

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1. A.
   $4\sqrt{3} - 2\pi$ cm$^2$
2. B.
   $\sqrt{3} - \pi$ cm$^2$
3. C.
   $\sqrt{3} - \frac{\pi}{2}$ cm$^2$
4. D.
   $2\pi - 2\sqrt{3}$ cm$^2$

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1. A.
   5 cm
2. B.
   7 cm
3. C.
   10 cm
4. D.
   14 cm

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1. A.
   $\frac{8\pi}{3}$ square cm
2. B.
   $\left(16\sqrt{3} - \frac{8\pi}{3}\right)$ square cm
3. C.
   $(16\sqrt{3} - 8\pi)$ square cm
4. D.
   $\frac{16\pi}{\sqrt{3}}$ square cm

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