Question

Find the total surface area of cubes having the following sides $5\mathrm{cm}$

Answer 1

Total surface area of cube :

Given, side length of cube, $a=5\mathrm{cm}$

The total surface area of a cube is given as,

$$\begin{gathered} \mathrm{TSA}=6a^2 \\ \Rightarrow \mathrm{TSA}=6·5^2 \\ \Rightarrow \mathrm{TSA}=150{\mathrm{cm}}^2 \end{gathered}$$

Therefore, the total surface area of the given cube is $150{\mathrm{cm}}^2$