Question

the length of the longest flag pole that can be put in your store room of dimensions 10 metres into 10 into 5 metres is

Answer 1

the length of the longest flag pole that can be put in a room is equal to length of diagonal of that room
so length of diagonal of cuboid (room)=root(l^2+b^2+h^2)
=root(10^2+10^2+5^2)
=15