Question

5.) explain how you can use cubes to determine the cube root of a perfect cube. Use drawings or liking cubes to help you

Answer 1

Note that the volume formula of a cube is :

$V=s^3$

where s = side of a cube

In a cube, all sides are equal.

And we know that the volume is s^3 which is definitely a cubic number.

Cubic number :

A number when multiplied by itself three times is a cubic number.

Getting the cube root of a perfect cube is like getting the measurement of one side of a cube given its volume.

When solving the side of a cube, we take the cube root of the volume.

$\begin{gathered} V=s^3 \\ \sqrt[3]{V}=s \end{gathered}$