Question

How can I estimate the square root of a non-perfect square

Answer 1

Hope this helped you :)

Answer 2

Use the two perfect squares it falls between to give you an accurate point of reference. 

For example, \/```28 (square root of 28)
The square root of 28 falls between the square root of 25 and 36, so you know the value will be between 5 and 6.