Question

The L.S.A. of a cube is 64 cm${}^2$. Calculate the side of the cube.

Answer 1

Lateral surface area of cube = $4\left(l^2\right)$
Hence $64$ = $4\left(l^2\right)$
$\Rightarrow$ $l^2$ = $\frac{64}{4}$ = $16$
Therefore, $l=4cm$
Thus, the side of the cube is $4cm$.