You can put this solution on YOUR website! The area of a square is given by the length of a side squared ( square units), but since a square is a two-dimensional figure, it has no volume.
A cylinder (right circular, I will presume) has two different surface area calculations depending on whether you want the total area or only the lateral area.
Lateral surface area: square units
Total surface area: square units. Can also be written as
The volume of a right circular cylinder is cubic units
P.S. If you actually meant 'cube' instead of 'square' in your question, I'm going to make you write back and say so.