The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 29 metres
The length of the largest rod that can be placed in that room = Internal diagonal of cuboid = √( l2 + b2 + h2)
The length of the largest rod =√(212 + 122 + 162)
The length of the largest rod= √(441 + 144 + 256)
The length of the largest rod=√841 = 29 meters