Longest rod in a room = space diagonal root(l^2 + b^2 + h^2)

1. A.
   10 m
2. B.
   11 m
3. C.
   12 m
4. D.
   13 m

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1. A.
   $12L = 29H$
2. B.
   $9L = 25H$
3. C.
   $7L = 23H$
4. D.
   $5L = 13H$

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1. A.
   3.5 m
2. B.
   4 m
3. C.
   4.5 m
4. D.
   5 m

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1. A.
   $\frac{2\sqrt{5}}{7}$
2. B.
   $\frac{3\sqrt{5}}{7}$
3. C.
   $\frac{1}{3}$
4. D.
   $\frac{2}{3}$

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1. A.
   3 m
2. B.
   5 m
3. C.
   6 m
4. D.
   7 m

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1. A.
   432 $\text{m}^3$
2. B.
   864 $\text{m}^3$
3. C.
   1296 $\text{m}^3$
4. D.
   Cannot be determined due to insufficient data

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