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A 4cm edge cube is cut into small cube each of edge 1cm.calculate the total surface area of small cube.Also find the ratio of total surface of large cube

to that of the small cube.



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Surface area of the big cube of 4 cm=6*4² cm²=96 cm²
Volume of the big cube of 4 cm= 4*4*4 cm³.
Area of 1 small cube of 1 cm=1*1*1 cm³
Therefore, no. of cubes =4*4*4/1*1*1
Surface area of 1 small cube=6*1² cm³=6 cm³
Surface area of 64 small cubes=6*64 cm²=384 cm².
Required ratio:
96 cm²:384 cm²

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