Randall has a box that measures 12 inches × 9 inches × 8 inches. If Randy wants to cover the box with aluminum foil, how much foil will it take to cover the entire outside of th…

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asked Mar 23, 2022 119k views

1 Answer

Wschopohl · Answer 1 · 2022-03-27T07:00:21+0000

Answer:

$A=552\ inches^2$

Explanation:

The dimensions of a box measures 12 inches × 9 inches × 8 inches.

We need to find the area of the aluminium required to cover the entire outside of the box.

We know that the surface area of the cuboidal box is given by :

$A=2(lb+bh+bl)\\\\=2(12* 9+9* 8+8* 12)\\\\=2* 276\\\\=552\ inches^2$

So, the required area of the foil is equal to
$552\ inches^2$ .