The length of the longest rod that can fit inside the crate is 69.29 cm.
The longest length of the rod that can fit inside the crate will be placed diagonally.
Therefore, lets find the diagonal of the rectangular prism.
where
l = length
w = width
h = height
Therefore,
D = √52² + 39² + 24²
D = √2704 + 1521 + 576
D = √4801
D = 69.2892488053
D ≈ 69.29 cm
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