The square root of 10 is approximately:

$\sqrt{10} \approx 3.162$

It is an irrational number, meaning it cannot be expressed as a simple fraction, but this is the decimal approximation to three decimal places.

Would you like further details or have any questions?

Here are 5 related questions:

1. What is the square root of 100?
2. How do you simplify square roots that are not perfect squares?
3. Can square roots of negative numbers be calculated in real numbers?
4. What is the approximate value of $\sqrt{15}$?
5. What are irrational numbers and how do they differ from rational numbers?

Tip: To estimate square roots of non-perfect squares, find the closest perfect squares and average their roots!