Question

A rectangular prism has a length of 6cm width of 3cm and a height of 4 1/2 cm.

Answer 1

I guess it's
40.5 hope soo

Answer 2

Answer:

To fill the rectangular prism, 648 cubes are needed.

Step-by-step explanation:

It is given that a rectangular prism has a length of 6 cm width of 3 cm and a height of 4 1/2 cm.

The volume of a rectangular prism is

$V=length\times breadth \times height$

$V_1=6\times 3 \times 4\frac{1}{2}$

$V_1=18 \times \frac{9}{2}$

$V_1=81$

The volume of rectangular prism is 81 cm³.

The volume of a cube is

$V=a^3$

Where a is the side length.

The volume of a cube with edge 1/2.

$V_2=(\frac{1}{2})^3$

$V_2=0.125$

To fill the rectangular prism, the required number of cubes is

$n=\frac{V_1}{V_2}$

$n=\frac{81}{0.125}$

$n=648$

Therefore, to fill the rectangular prism, 648 cubes are needed.