Respuesta :

Step-by-step explanation:

a=7

=6a^2

=6×(7)^2

=6×49

=294

NotNav

Answer:

Surface area of the cube = 294cm^2

Step-by-step explanation:

A cube has the same side lengths for every side

Surface area of one face is length * length

7 * 7 = 49cm^2

A cube has 6 faces

49 * 6 = 294cm^2