Question

The base of a rectangular prism measures $30cm\times 40cm$ and has a height of 3 meters. What will the volume of the prism be?

• A. 3.60 cu m
  
• B. 36 cu m
  
• C. 0.036 cu m
  
• D. 0.36 cu m
  

Answer 1

The correct option is D 0.36 cu m


Given, the height of the prism is 3 m and base measures $30cm\times 40cm$.
We know that 100 cm = 1 m
$\Rightarrow 1cm=\frac{1}{100}$ m
$\Rightarrow 30cm=\frac{30}{100}m=0.3m$
Similarly,
$\Rightarrow 40cm=\frac{40}{100}=0.4m$



Now, volume of prism $=\text{length}\times \text{width}\times \text{height}$
$=3\times 0.3\times 0.4=0.36$ cu m