What is the length of the longest rod that can be placed in a room of dimensions 12 m × 9 m × 8 m?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option2 i.e. 17 m
Given that
A room of dimensions 12 m × 9 m × 8 m
The length of the longest rod that can be placed in a room is = √(l2 + b2 + h2)
l = length = 12 m
b = width = 9 m
h = height = 8 m
Hence, The length of the longest rod = √(l2 + b2 + h2) = √(144 + 81 + 64) = √289 = 17 m