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

Given: Length of room = 12 m

Breadth of room = 9 m

Height of room = 8 m

To find: The length of longest rod.

Formula Used:

Explanation:

As longest side of a cuboid is it’s diagonal.

So,

Length of longest rod that can be placed in room = diagonal of room

For the given dimensions:

= 17 m

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