Surface Area and Volume of Cube
Surface Area of a Cube = 6a2
Solid objects occupy space. The measure of this occupied space is called the Volume of the object.
If an object is solid, then the space occupied by such an object is measured, and is termed the Volume of the object. On the other hand, if the object is hollow, then interior is empty, and can be filled with air, or some liquid that will take the shape of its container. In this case, the volume of the substance that can fill the interior is called the capacity of the container. In short, the volume of an object is the measure of the space it occupies, and the capacity of an object is the volume of substance its interior.
Volume of a Cube = edge X edge X edge = a3