Question

The volume of a cube is 729cm∆3 find its surface area and length of the diagonal

Answer 1

surface areas = 486sqcm.
9√3cm is the diagonal

Answer 2

let the edge of cube=a cm
volume=a^3
a^3=729
a^3=9^3
a=9 cm
lateral surface area=4a^2
                                 4x9^2
                                 324cm^2
total surface area=6a^2
                              6x9^2
                              486cm^2