Question

How do you find the square root of 121? Medal for fast help! :)

Answer 1

Answer: 11

Answer 2

thanks, any way you could summarize how to figure that out?

Answer 3

first find all odd or even prime factors for given no.
then on applying square root we get the required value

Answer 4

what does applying square root mean?

Answer 5

1, 11 and 121 are the prime factors of 121

Answer 6

Just now that 10 * 11 is 110 so if you add 11 more you get 121 so therefore you now that the answer is 11 * 11

Answer 7

okay so basically square root is what number times itself can equal the given number?

Answer 8

the square root of 121 is 11 and -11

\(b\) is the square root of a number \(a\) if \(b^2=a\)

since \(11^2=121\) and \((-11)^2=121\) both 11 and -11 are square roots of 121

Answer 9

Okay :) Thanks!