length x width x height
measure the sides of the box
It should be relatively easy to find the surface area of a box when you are given the surface area.
find the area of each side and add them together.
sa=2lw+2lh+2wh
The surface area of a box, which is a cuboid, depends on its length, width and height. A cube is a special type of cuboid in which the length , width and height are all the same.
The formula will depend on what it is that you are trying to find: the volume or the surface area.
Volume is how much an object can store - like how much can you put inside a box. Surface area is the sum of the area of an objects surfaces - such as if you have a box, find the area of one side. Then you just multiply it by 6 (because a box have 6 faces) to get the total area of an object's surface.
you multiply the length times width times height.
need to measure the length and width of the front surface, then multiply these two measurements together. This will give you the area of the front surface of the box.
To calculate the area of the front surface of a box, you would multiply the width of the box by the height of the box. This calculation gives you the area of the rectangular front surface.
to know how much paint is needed to coat it
The surface area of a box is the sum of the areas of the individual faces. If that's what you said, then there is no difference.