SOLUTION: A room is 12 m long, 9 m broad, 8 m high.The longest iron-bar that can be placed in it is:

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Question 869750: A room is 12 m long, 9 m broad, 8 m high.The longest iron-bar that can be placed in it is:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
the longest space will be from the ceiling to the floor on a diagonal
12 and 9 diagonal is 15 m
15 and 8 diagonal is 17 m longest