A child playing with building blocks, which are of the shape of the cubes, has built a structure as shown in Fig.
Question:
A child playing with building blocks, which are of the shape of the cubes, has built a structure as shown in Fig. 18.12. If the edge of each cube is 3cm, find the volume of the structure built by the child.
Solution:
Volume of each cube = edge * edge * edge
= 3 * 3 * 3
$=27 \mathrm{~cm}^{3}$
Number of cubes in the structure = 15
Therefore, volume of the structure = 27*15
$=405 \mathrm{~cm}^{3}$
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