Because it depends on how big the retangle/square is.
Provided the shape remains similar, the surface varies as the 2/3 power of the volume. Or, to put it another way, the cube root of the volume varies directly as the square root of the surface area. Or, the square of the volume is in direct proportion to the cube of the area.
The answer is in the first part of your question. By this I mean that surface area would be measured in square units. For example, the surface area of the rectangle was 32cm squared.
rectangle and octahedron
Volume does not, surface area does.
A rectangle does not have volume because it is 2 dimensional but it does have area which is length times width measured in square units.
A rectangle is a shape on a flat surface. It has two dimensions,and its volume is zero.BTW -- Any unit of volume is a 'cubic unit'.
The area of a square or rectangle can be found by multiplying the length times the width. In a square both the length and width are the same measure.
multiply the length by the width by the height
Square feet is a measure of area. You do not get paint by the area - you get it in a volume - a litre, or quart or whatever. The container will give a meausre of the covergae which will depend on the surface being painted - its porosity, prior traetment, etc. Furthermore, a rectangle is an area. A rectangle can be measured in square feet but never in cubic feet. A rectangle measuring 40 cubic feet cannot exist!
The surface area of a sphere with a volume of 3500pi is: 2,391 square units.
A rectangle is a two dimensional object and as such does not have a volume. Instead it has a surface area, which is defined to be the length times the width.
true