Question

LeAnn wants to gift wrap a present she got for her little brother. How many square inches of gift wrap will be needed to cover a box that is 5in x 7in x 3in?​

Answer 1

The answer is 142 square inches.

Explanation:

Let length be = 5

Let the width be = 7

Let the height be = 3

The gift box is a 3 D box with 6 faces.

So, we get three possible combinations, and each combination is multiplied by 2 for a parallel face.

Hence, we get;

`(5)(7)(2)=70` square inches

`(5)(3)(2)=30` square inches

square inches.

Answer 2

A box has six sides.

Using the dimensions of the box:

2 sides are 5 x 7

2 sides are 7 x 3

2 sides are 5 x 3

Now calculate the total area:

2 x 5 x 7 = 70

2 x 7 x 3 = 42

2 x 5 x 3 = 30

Total area = 70 + 42 + 30 = 142 square inches.