Juanita covered the outside of a giftbox shaped like a rectangular prism with paper. the box is 3.2 ft long 2.1 ft wide and 2.7 ft high. which of the following is closest to the total surface area of the box

The surface area of a three dimensional object is equal to the sum of the areas of all the faces. Juanita has a box that is 3.2 x 2.1 x 2.7 ft. We can use this information to find the area of all the faces. 

There will be two faces that are 3.2 x 2.1

There will be two faces that are 3.2 x 2.7

There will be two faces that are 2.1 x 2.7

So the following expression can be used to find the surface area:



The surface area is 42.06 ft^{2}