The square root of 69 is approximately 8.3 when rounded to one decimal place.

Would you like more details or have any questions?

Here are five related questions:

1. What is the square root of 70 to 1 decimal place?
2. How can you estimate square roots of non-perfect squares manually?
3. What is the square root of 144?
4. How does the square root function behave for negative numbers?
5. Can you explain the difference between perfect and non-perfect squares?

Tip: To estimate square roots of non-perfect squares, find the two nearest perfect squares and interpolate between their roots.