Area = (1/2) ab sin C for a triangle, or ab sin C for a parallelogram

1. A.
   $60\sin\theta$
2. B.
   $120\sin\theta$
3. C.
   $60\cos\theta$
4. D.
   $120\cos\theta$

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1. A.
   12 square cm
2. B.
   $12\sqrt{3}$ square cm
3. C.
   24 square cm
4. D.
   $24\sqrt{3}$ square cm

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1. A.
   $40\sqrt{3}$ square cm
2. B.
   40 square cm
3. C.
   $20\sqrt{3}$ square cm
4. D.
   20 square cm

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1. A.
   $21\ \text{cm}^2$
2. B.
   $21\sqrt{3}\ \text{cm}^2$
3. C.
   $42\ \text{cm}^2$
4. D.
   $42\sqrt{3}\ \text{cm}^2$

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