Day 156: CDS Maths

1. A.
   10.0
2. B.
   10.5
3. C.
   11.0
4. D.
   11.5

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1. A.
   $0$
2. B.
   $\frac{1}{2}$
3. C.
   $\sin\left(\frac{A+B+C}{4}\right)$
4. D.
   $\tan\left(\frac{A+B+C}{4}\right)$

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1. A.
   5 cm
2. B.
   5.5 cm
3. C.
   6.5 cm
4. D.
   7 cm

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1. A.
   $7.7 < t < 8$
2. B.
   $8 < t < 8.3$
3. C.
   $8.3 < t < 8.6$
4. D.
   $8.6 < t < 8.9$

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1. A.
   $\frac{l^2}{2}\left(\pi - \frac{1}{2}\right)$
2. B.
   $\frac{l^2}{4}\left(\pi - \frac{1}{2}\right)$
3. C.
   $\frac{l^2}{4}\left(\frac{\pi}{2} - 1\right)$
4. D.
   $\frac{l^2}{2}\left(\frac{\pi}{2} - \frac{1}{2}\right)$

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1. A.
   $\frac{l^2}{4}\left(\frac{3\pi}{2} + 1\right)$
2. B.
   $\frac{l^2}{4}\left(\frac{3\pi}{2} - 1\right)$
3. C.
   $\frac{l^2}{2}\left(\frac{3\pi}{2} + 1\right)$
4. D.
   $\frac{l^2}{2}\left(\frac{3\pi}{2} - 1\right)$

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