The two cubes are similar in shape. Compare the volume of the two and determine the scale factor from the smaller cube to the larger cube. Enter your response as a fraction.

v =512m^2
v=1728m^3

1 answer

To determine the scale factor between the two similar cubes based on their volumes, we first need to find the volume of each cube in a consistent unit.

The volumes given are:

  • Volume of the smaller cube: \( V_1 = 512 , \text{m}^3 \)
  • Volume of the larger cube: \( V_2 = 1728 , \text{m}^3 \)

The scale factor from the smaller cube to the larger cube can be calculated using the formula related to the volumes of similar shapes. If the scale factor is \( k \), then the relationship between the volumes of similar shapes is given by:

\[ \frac{V_2}{V_1} = k^3 \]

Now we can find the scale factor:

\[ k^3 = \frac{V_2}{V_1} = \frac{1728}{512} \]

Simplifying the fraction:

\[ \frac{1728 \div 512}{512 \div 512} = \frac{3.375}{1} = \frac{27}{8} \]

Now, we take the cube root of both sides to find \( k \):

\[ k = \sqrt[3]{\frac{27}{8}} = \frac{\sqrt[3]{27}}{\sqrt[3]{8}} = \frac{3}{2} \]

Thus, the scale factor from the smaller cube to the larger cube is:

\[ \frac{3}{2} \]

So the final answer is:

\[ \frac{3}{2} \]