How do you find the surface area of a box?

Method 1 Rectangular BoxesAdd together the area of each side to get the surface area of the box. ... Measure the length of the box. ... Measure the height of the box, or the distance from the floor to the top. ... Measure the width of the box. ... Ensure that you didn't measure the same side twice.More items... read more

To find the surface area of a box, start by calculating the area of each side using the formula a = lh, where l is the length and h is the height. Once you know the area of every side, add them all together to get the surface area of the box. read more

So, the total surface area is sum of twice each of these areas, that is: Total Surface Area = 2(Area hw) + 2(Area hl) + 2(Area wl) The volume of the box is simply the product of h, w, and l. read more

In words, the surface area of a cube is the area of the six squares that cover it. The area of one of them is a*a, or a 2. Since these are all the same, you can multiply one of them by six, so the surface area of a cube is 6 times one of the sides squared. read more