The volume of a cuboid is 72cmcubed what is the missing lengths

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Sorry guys but as you have a small brain

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that