Question
Question: A hall has the dimensions \(10m \times 12m \times 14m.\) A fly starting at one corner ends up at a d...
A hall has the dimensions 10m×12m×14m. A fly starting at one corner ends up at a diametrically opposite corner. What is the magnitude of its displacement
A
17 m
B
26 m
C
36 m
D
20 m
Answer
20 m
Explanation
Solution
Diagonal of the hall = l2+b2+h2

=102+122+142
=100+144+196
=400=20m