How do I find the length with the given density, mass, width and a height?

Question

Okay so the problem is:

 

Platinum has a density of 21.4 grams per cubic centimeter. A bar of platinum has a mass of about 1000 grams. It has a width of 51 millimeters and a height of 9.7 millimeters. Find the length of the bar to the nearest millimeter.

 

Do I re-arrange the Density formula so I could get the Volume?

Answer 1

First get

 

volume = mass / density.

 

Then get 

 

length = volume / (width x height).