Question

A child playing with building blocks, which are of the shape of the cubes, has built a structure as shown in the figure. If the edge of each cube is 3 cm, find the volume of the structure built by the child.

Answer 1

$\text{No. of cubes in the given structure}$$=1+2+3+4+5=15$

$\text{Edge of one cube}=3cm$

$\therefore \text{Volume of one cube}=(3{)}^3=3\times 3\times 3c{m}^3$$=27c{m}^3$

$\therefore \text{Volume of the structure}=27\times 15c{m}^3$$=405c{m}^3$