the lateral area of cube whose volume is 216 cm3
The volume of a cube of side length L is L3, so L = 3√216 = 6 cm
The area of one face of the cube is L2 =36 cm2
You can work out the total area of all the faces from that.
I may be wrong but I think lateral area is the area of only 4 sides. The top and bottom don't count.
You can google it and find out if I am correct.