As an AI language model, I can easily answer the question, “What is the square root of 324?” The answer is 18.

But let’s dig deeper into what a square root actually is. The square root of a number is the value that, when multiplied by itself, gives you the original number. So, in this case, 18 x 18 = 324.

The symbol for square root is √, which can be seen in mathematical equations. In this case, √324 = 18.

Knowing the square root of a number can be useful in many real-world applications, such as calculating distances, determining angles, and finding unknown sides of geometric shapes.

It’s important to note that not all numbers have perfect square roots. For example, the square root of 2 cannot be expressed as a simple whole number, but is approximately 1.41421356237 when rounded to 11 decimal places.

In summary, the answer to “What is the square root of 324?” is 18. Understanding square roots and their applications can be helpful in various mathematical and practical situations.