Question

How many $1cm\times 1cm\times 1cm$ blocks are needed to build the solid rectangular prism shown?

• A. 10
• B. 12
• C. 33
• D. 36

Answer 1

The correct option is D 36

Number of blocks required $=\frac{\text{Volume of rectangular prism}}{\text{Volume of one block}}$

$=\frac{4\times 3\times 3}{1\times 1\times 1}$

Number of blocks required $=36$

Number of blocks required to build the solid rectangular prism is $36$.