Question

consider the cube shown at the right. All the side lengths of the cube have been marked with the variable s. the firmula firvthe surface area of a cube is given by SA=6s2. explain where this equatiin comes from

Answer 1

The explanation goes as contained below.

The shape is a cube and for a cube all sides are equal,

from the question the Area of just one side is :

$\begin{gathered} S\times S=S^2 \\ \text{Then for 6 sides we have 6 }\times S^2=6S^2 \end{gathered}$