Weight to length

[StumpedDad]

We know the density and weight of the cube, we need to know the length. How do I figure this one out?

[Guest]

We know the density and weight of the cube, we need to know the length. How do I figure this one out?

volume = weight/density

volume = (side)^3

or side = (volume)^(1/3)

Be sure you know what cubic units are used to express the density, the side of the cube will be given in that linear unit.

example, 100 kg of water, 1 kg/L. You can't use liter, but 1 liter = 1 dm^3

(100 dm^3)^(1/3) = 4.64 dm or 464 mm.

Similarly, in "english" units if you have gallons, you'd have to convert to cubic inches or cubic feet.

[Guest]

Please advise how to convert 1kg of fabric and it is weight per Sq mtr is 130gms to 1 yard