Answer:
54 in²
Step-by-step explanation:
Look at the picture.
The edge of the cube is equal to the diagonal of the sphere.
Therefore, the length of the cube's edge is 3 inches.
The formula of a surface area of a cube:
[tex]S.A.=6a^2[/tex]
Substitute a = 3 in:
[tex]S.A.=6(3^2)=6(9)=54\ in^2[/tex]
