Classify the square root of 13

To classify the square root of 13, we need to determine whether it is a rational or irrational number.

In this case, the square root of 13 (√13) is an irrational number.

To solve for the square root of 13, you can use a calculator or approximate it manually using the following steps:

1. Start with an initial approximation, such as √16 (which equals 4).
2. Determine whether your approximation is too high or too low by squaring it: 4^2 = 16.
3. Since 13 is less than 16, your initial approximation is too high.
4. Now, adjust your approximation halfway between your initial approximation and the true square root of 13. In this case, it would be halfway between 4 and √13.
5. Repeat steps 2-4 until you reach a precise enough approximation for your needs.

After iterating through these steps for a while, you will find that √13 is approximately 3.60555127546 (rounded to 11 decimal places).

Remember, the square root of 13 is an irrational number because it cannot be expressed as a fraction or ratio of two integers.