Volumes Practice Test 3

Question : 24 of 40

Marks: +1, -0

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.

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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