Question

The total surface area of a cube is 54cm^2.
What is the length of its sides?​

Answer 1

Answer:

Total surface area of cube - 54 cm^2

= 6 a^2

54 = 6a^2

54/6 = a^2

9 = a^2

a= 3 cm

hope it will be helpful ✌️

Answer 2

Question

The total surface area of a cube is 54cm^2.

What is the length of its sides?

Answer

$total \: surface \: area \: of \: cube \: = 6 {a}^{2} \\ = > 54 {c} {m}^{2} \\ = > 6 {a}^{2} = 54 {cm}^{2} \\ = > {a}^{2} = \frac{54}{6} \\ = > { a}^{2} = 9 \\ = > a = \sqrt{9} \\ = > a = 3$

Hope it helps you ♥️