1. The problem statement, all variables and given/known data This is just a general question. The questions I can't get go something like this: You're given a liquid you plan to store, in a tank, say for this example, a rectangular one with square sides. You're given the max fluid force that the interior walls can withstand, and asked to find how many cubic units of fluid the tank can store, at maximum, I'm assuming. My question is, how do you go about setting up a problem like this in general? 2. Relevant equations 3. The attempt at a solution So far I've tried to setup the integral with the force already put in (since its given), but I don't know where to start with how to integrate / solve for volume / find boundaries / etc. Any help or hints would be appreciated.