Question

Mrs. Fowler is wrapping up this aquarium light kit for her husband for Christmas,How much wrapping paper will she need to cover the entire surface area of thebox?The length is 7.5 inches, the width is 2 inches and the height is 3 inches.

Answer 1

The acquarium light kit has the shape of a rectangular prism.

Here, we are to find the area of the acquarium light kit.

To find the area, use the formula for the Area of a rectangular prism below:

`A=2(wl+hl+hw)`

Where

Length, l = 7.5 inches

Width, w = 2 inches

Height, h = 3 inches

Now, substitute values into the formula above.

We have:

`\begin{gathered} A=2(2\ast7.5\text{ + 3}\ast7.5\text{ + 3}\ast2) \\ \\ A=2(15+22.5+6) \\ \\ A=2(43.5) \\ \\ A=87in^2 \end{gathered}`

Therefore, she will need 87 inches of wrapping paper to cover the entire surface area of the box.

ANSWER:

`87in^2`