# How do you find the square root of 85?

##### 1 Answer

But you can get better and better approximations by: start with a number whose square is close to 85. (9 or 10.

Now divide 85 by

Average the two numbers

Repeat:

Average:

Repeat:

Average:

That answer is accurate to 4 decimal places. If you need more accuracy, keep more decimal places at each step.