Rita decorates boxes. She has a box that measures 7 inches long, 4 inches wide, and 2 inches high. How much material is needed to cover the box completely?

Answer 1

surface area which is what we need here to cover the box is

the top and bottom area two times

7 x 4 =28 x 2 =56

the sides which are 7 x 2 two times

so 14 x 2 =28 and

finally the two ends

which is 4 x 2 two times

which is 8 x 2=16

adding them up we get 56 +28 +16 = 100 square inches of material