## Volume of a Cube Lesson

### Cube Volume Formula

The formula for volume of a cube is given as:

**V = a ^{3}**

Where *V* is the volume and *a* is the edge length.

INTRODUCING

### Volume of a Cube Example Problems

Let's go through a couple of example problems together to practice finding the volume of a cube.

#### Example Problem 1

Find the volume of a cube with an edge length of 5.

Solution:

- We can simply plug the edge length into the formula. This gives us:
- V = a
^{3} - V = (5)
^{3}= 125 **The volume of the cube is 125.**

#### Example Problem 2

The volume of a cube is 343. What is the edge length?

Solution:

- Let's plug the volume into the formula and then solve for the edge length
*a*. - V = a
^{3} - 343 = a
^{3} ^{3}√343 = a- a = 7
**The edge length is 7.**