Wire re-bent from one shape into another: find the new side, radius or area

1. A.
   $121 \text{ cm}^2$
2. B.
   $144 \text{ cm}^2$
3. C.
   $154 \text{ cm}^2$
4. D.
   $168 \text{ cm}^2$

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1. A.
   $12\sqrt{2}$ cm$^2$
2. B.
   $12\sqrt{3}$ cm$^2$
3. C.
   $16\sqrt{2}$ cm$^2$
4. D.
   $16\sqrt{3}$ cm$^2$

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1. A.
   146 cm
2. B.
   152 cm
3. C.
   154 cm
4. D.
   156 cm

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1. A.
   $\dfrac{19}{3}$ cm
2. B.
   7 cm
3. C.
   8 cm
4. D.
   None of the above

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1. A.
   55 cm
2. B.
   75 cm
3. C.
   95 cm
4. D.
   110 cm

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1. A.
   1 only
2. B.
   2 only
3. C.
   Both 1 and 2
4. D.
   Neither 1 nor 2

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1. A.
   $\frac{9}{\pi}$ cm
2. B.
   $\frac{18}{\pi + 2}$ cm
3. C.
   $\frac{18}{\pi}$ cm
4. D.
   None of the above

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