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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. |
| Answer» AREA of the big cube of 4 CM=6*4² cm²=96 cm²Volume of the big cube of 4 cm= 4*4*4 cm³.Area of 1 small cube of 1 cm=1*1*1 cm³Therefore, no. of cubes =4*4*4/1*1*1=64.Surface area of 1 small cube=6*1² cm³=6 cm³Therefore,Surface area of 64 small cubes=6*64 cm²=384 cm².Required ratio:96 cm²:384 cm²=1:4 | |