Sector area = (angle/360) x pi r^2: find area, radius or angle

1. A.
   $12.8\ \text{cm}^2$
2. B.
   $14.1\ \text{cm}^2$
3. C.
   $13.1\ \text{cm}^2$
4. D.
   $15.1\ \text{cm}^2$

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1. A.
   $52.33\ \text{cm}^2$
2. B.
   $75.28\ \text{cm}^2$
3. C.
   $60.67\ \text{cm}^2$
4. D.
   $55.00\ \text{cm}^2$

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1. A.
   784 m
2. B.
   22 m
3. C.
   27 m
4. D.
   28 m

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1. A.
   $\frac{77}{2}$
2. B.
   $77$
3. C.
   $\frac{77}{3}$
4. D.
   $\frac{77}{4}$

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1. A.
   35 cm
2. B.
   20 cm
3. C.
   25 cm
4. D.
   15 cm

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1. A.
   $90^\circ$
2. B.
   $75^\circ$
3. C.
   $60^\circ$
4. D.
   $108^\circ$

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1. A.
   18 cm
2. B.
   17 cm
3. C.
   14 cm
4. D.
   21 cm

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1. A.
   $90^\circ$
2. B.
   $120^\circ$
3. C.
   $150^\circ$
4. D.
   $180^\circ$

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1. A.
   $26.18\ \text{cm}^2$
2. B.
   $8.33\ \text{cm}^2$
3. C.
   $10.47\ \text{cm}^2$
4. D.
   $12.5\ \text{cm}^2$

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1. A.
   8.6 cm
2. B.
   6.5 cm
3. C.
   10.7 cm
4. D.
   7.5 cm

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1. A.
   $16\pi\ \text{cm}^2$
2. B.
   $12\pi\ \text{cm}^2$
3. C.
   $32\pi\ \text{cm}^2$
4. D.
   $8\pi\ \text{cm}^2$

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1. A.
   $30\pi\,\text{cm}^2$
2. B.
   $37.5\pi\,\text{cm}^2$
3. C.
   $45\pi\,\text{cm}^2$
4. D.
   $75\pi\,\text{cm}^2$

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1. A.
   $90^\circ$
2. B.
   $120^\circ$
3. C.
   $45^\circ$
4. D.
   $75^\circ$

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