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(B) The longest pole that can be placed in a room is equal to the length of the space diagonal of the cuboid.The formula for the space diagonal of a c

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$15$

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(B) The longest pole that can be placed in a room is equal to the length of the space diagonal of the cuboid.The formula for the space diagonal of a cuboid with dimensions $l$,$b$,and $h$ is given by $\sqrt{l^2 + b^2 + h^2}$.Given dimensions are $l = 10 	ext{ m}$,$b = 10 	ext{ m}$,and $h = 5 	ext{ m}$.Substituting these values into the formula:$	ext{Length} = \sqrt{10^2 + 10^2 + 5^2}$$= \sqrt{100 + 100 + 25}$$= \sqrt{225}$$= 15 	ext{ m}$.

The length of the longest pole that can be placed in a room of dimensions $(10 \text{ m} \times 10 \text{ m} \times 5 \text{ m})$ is (in $\text{m}$):

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