Kenndi has rectangluar box that is 6 cm wide, 4 cm long and 3 cm deep. How much wrapping paper will she need to cover the entire box?

In this question you are finding the surface area. So first you need to classify what is the height length and width.

6 cm - width

4 cm - length

3 cm - height

Next you should draw a rectangular prism. Put the width, length and height in the according sides. After doing so you would see the faces would have the following dimensions: 24, 12 and 18. Multiply each dimension by two and you will get your surface area 108 cm squared.

OR use the following formula: A=2 (wl+hl+hw)