Answer:
3.10 m
Step-by-step explanation:
The bedroom needs to be 30 cubic meters when finished.
We need to find the dimensions of the room.
The volume of a cube is given by :
[tex]V=a^3[/tex]
Where
a is the side of the cube
So,
[tex]a=(V)^{1/3}\\\\a=(30)^{1/3}\\\\a=3.10\ m[/tex]
So, the dimension of the room is 3.10 m.