Question

Each face of a cube has perimeter equal to $32$ cm. Find its surface area

Answer 1

The faces of a cube are squares.

Let the side of the square or the cube $=a$ cm

Perimeter of the square $=4a=32$ cm $\to a=8$ cm
Total surface area of a cube of edge $a$ $=6a^2$

So, the total surface area of the cube of edge $a$ $=8$ cm is $6{\left(8\right)}^2=384{cm}^2$