Respuesta :

Answer:

91.26 ft2

Step-by-step explanation:

Given, length of side =.9 ft

The total surface area of a cube = 6× side 2

=6×3.9×3.9

=91.26ft

2

Answer:

=> 864ft²

Step-by-step explanation:

Given :

=> side length of cube = 12 feet

=> The surface area of cube = 6a²

=> 6×12×12

=> 864 ft ²