Question

find the length of the longest rod that can be placed in a room 12 m long, 9m broad and 8 m high.

Answer 1

$\sqrt{12 {}^{2} } + 9 {}^{2} + 8 {}^{2}$
$144 + 81 + 64 \\ \sqrt{289} = 17$
17m rod can be kept. Mark as brainliest