Betty is planning to give this box as a gift, so she plans to wrap it. The box is shaped like a rectangular prism, where the length is 14 inches, the width is 5 inches, and the height is 4 inches. How many square inches of paper will she need to cover the entire box?

Question

Caermen · Answer

OK so, a box has six sides right? so what we're gonna do is find the area of each side. So lets say side one is 14 x 5, width and length, well 14 x 5 is 30 and we have two sides that are 14 x 5 so we have two sides that are 30 in. in area. Well side 3 (side two is the other 30 in) is 4 x 5, which is 20, so we have two sides that are 4 x 5 so we have two sides that are 20 in. in area. Then we have side 5 is 14 x 4 so 14 x 4 is 26 so side 5 is 26 in. and we have two sides that are 26 in. so now we multiply 30 in., 20 in., and 26 in., by 2. So 30 x 2 is 60, 20 x 2 is 40, and 26 x 2  is 52, and now we add them all together.  60 + 40 + 52 is 152 in. squared. So Betty will need 152 square inches of wrapping paper.