# Volume of a Cube

Lesson Objective
In this lesson, we will learn about the volume of a cube.
This lesson will explain the following things:
1. How to derive the formula for the volume of a cube
2. Using the formula to calculate the cube's volume
3. Using the volume formula to calculate the length of each side (edge) of a cube
The study tips and math video below will explain more.

# Study Tips

Tip #1
In the last lesson, we learned that the volume (V) of a rectangular solid can be calculated by multiplying the width (W), length (L) and height (H) of the solid together. The formula is shown below:
V = WLH
Now, a cube is a special form of a rectangular solid because the sides (edges) of the cube have the same length. Therefore, if the length of a side of the cube is L, the width, length and height will have the length L.

With this, we can derive the formula for the volume of a cube as shown below:
V = WLH
= L×L×L
= L3
Hence, we have the formula:
V = L3
The math video below will explain more about this formula. Also, you will see some examples on using it...

# Math Video

Lesson Video

If the above player doesn't work, try this direct link.

Math Video Transcript

# Practice Questions & More

Multiple Choice Questions (MCQ)
Now, let's try some MCQ questions to understand this lesson better.

You can start by going through the series of questions on the volume of a cube or pick your choice of question below.
1. Question 1 on finding the volume of a cube
2. Question 2 on finding the length of the sides of a cube