#### Question :

Find the length of the longest rod that can be placed in room 12 m wide and 8 m high.Submitted on 23/12/2023 | Answered by Vandana Rana#### Answer :

Given that: length l=12m breadth b=9m and height h=8mLongest rof that can be placed in a room is nothing but its diagonal.

```
Length of diagonal of a cuboid =√(l² +b²+h²2)
```

Length of longest rod =√(12²+9²+8²)m

=√(144+81+64)m

=√289 m

= 17m

The length of the longest rod is 17 m .