Question

How many cubes with sides length of 1/2 cm does it take to fill the prism

Answer 1

Answer:

40 cubes

Step-by-step explanation:

We need to determine the volume of the cuboid.

$Volume=lbh$

We substitute the given dimensions l=2.5cm,w=2cm and h=1cm.

$Volume=2.5\times2\times1cm^3$

$Volume=5cm^3$

The volume of the cube is $Volume =(\frac{1}{2})^3=\frac{1}{8} cm^3$

We need to divide the volume of the cuboid by the volume of the cube to get the number of cubes that can fill it;

$\frac{5}{\frac{1}{8} }=8\times 5=40$