width = volume/(length*height)
You cannot. If you have the length, width and height you can work out the volume - if your object is a cuboid. But given a volume you cannot work out length, width and height.
length *width*height=area of cuboid
Volume = Length * Width * Height
For a cuboid it gives its volume.
Volume = Length * Height * Width That equation can be rearranged to: Width = Volume/(Length * Height) This answer will only work for a cuboid (or a cube) and not any other 3d shape.
All you need to do is times width by length by height 2x5x3 = 30cm^3
The volume of a rectangular prism (a shape like box)
Only if the shape is a cuboid.
Volume of a cuboid.
Length x width x height equals volume.* * * * *But only if the object in question is a cuboid (rectangular prism). Length*Width*Height for a sphere, for example, does not equal its volume.