A cube is a square shape with 6 sides.
Calculate the surface area of one side first.
The area of a square is Sides x side = 1/3 x 1/3 = 1/9 square cm's.
Now multiply the area of one side by 6 sides:
1/9 x 6 = 2/3
The surface area = 2/3 square cm's.
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