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© examsnet.com
Question : 24
Total: 40
Each side of a cube is 3 units. It is cut into cubes each of side 1 unit. Find the total surface area of all the smaller cubes thus obtained.
27 square units
81 square units
108 square units
162 square units
Validate
Solution:
Number of smaller cubes =
3
3
1
3
= 27
Since, total surface area of all the smaller cubes = 27 × 6 ×
1
2
= 162 square units
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