What is the root of pi?

The square root of π (pi) is an irrational number and can be approximated as:

[ \sqrt{\pi} \approx 1.772 ]

If you need a more precise value, it can be calculated to more decimal places, but it remains an irrational number. In mathematical terms, it can be represented as:

[ \sqrt{\pi} \approx 1.77245385091... ]

If you need further information or need it in a specific context, let me know!