Question

A room has dimensions 3mx4mx5m. A fly starting
at one corner ends up at the diametrically opposite
corner. The magnitude of the displacement of the
fly
is
1) 12m
2) 60 m
3) 2√5 m 4) 5√2 m
​

Answer 1

Answer:

4) 5√2

the formulae for the diagonal of a cuboid is √a²+b²+c²

√9+16+25 = 5√2