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 3 cm, find the volume of the structure built by the child.
Given,
Edge of cube = 3 cm
Volume of cube = 33 = 27 cm3
Number of cubes = 15
Volume of structure = number of cubes × volume of one cube
= 15×27 = 405 cm3
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