Question

What is the formula of TSA of a cube?

Answer 1

The total surface area of a cube is the sum of the areas of all its faces.

Since a cube has $6$ faces and the shape of the face is a square.

Hence, the total surface area of a cube is,

$TSA=6\left(areaofeachfaces\right)$

$\Rightarrow$$TSA=6\times \left(areaofsquare\right)$

$\Rightarrow$$TSA=6\times {\left(side\right)}^2$ sq. units

Hence, the total surface area of a cube is $6\times {\left(lengthofanedge\right)}^2$ sq. units.