A cube has six identical square sides each having an area of s^2, so the surface area of a cube is:
A=6s^2 where s is a side length, in this case, s=9cm so
A=6(9^2)
A=6*81
A=486cm^2
The volume of a rectangular prism is:
V=xyz where x,y, and z are the dimensions, with a cube x=y=z=s because all dimensions are equal so:
V=s^3, and s=9cm in this case so
V=9^3
V=729cm^3
