Enter the volume of the rectangular shaped box and select the relevant volumetric units. The volume of a box is its width times its height times its depth. Dimensions of each panel Option 1 Option 2 Option 3.
L is the length.
L 12 - x. Measure all three aspects--the length width and height--of an object to get a three-dimensional measurement. This video shows how to find the largest volume of an open top box given the amount of material to use. All dimemsions of the box must be positive or zero hence the conditions.