Question

Find the square root of 85​

Answer 1

Answer:

√

85

is a non-terminating, non-repeating decimal. You can't finish finding it.

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

9

2

is closer, so start there.

Now divide 85 by

9

to get

9.4444

(to 4 places)

Average the two numbers

9

and

9.4444

9

+

9.4444

2

=

9.2222

Repeat:

85

÷

9.2222

=

9.2169

(rounded to 4 places)

Average:

9.2222

+

9.2169

2

=

9.2196

Repeat:

85

÷

9.2196

=

9.2195

(rounded to 4 places)

Average:

9.2196

+

9.2195

2

=

9.2196

√

85

≈

9.2196

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

Answer 2

Answer:

please can answer me that what is write 9.22 or 9.21