Each face is 3*3 = 9 cm2
There are 6 faces, so the total surfact area is 6*9 cm2 = 54 cm2
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Total Surface Area of Cube is 6a2 . Here "a" is the "length of each side" of the cube.
surface area of cube=6*side*side =6*7.2*7.2
The surface area is quadrupled.
Total surface area of a cube = 6*area of cube face = 6*cube side*cube side
From the surface area, calculate the length of each side: area = 6 x side2.Once you know this side, you can get the cube of it, to obtain the volume.