What is the square root of 144?

Answer 1

12i where i is the square root of -1

Answer 2

Take the square root of +144, then add "i" at the end - where "i" is the imaginary unit.

Answer 3

12, And here is an easier way to find the square root of something like say your teacher ask what is the square root of 20. So its basically 10.To answer a square root question it is dividing by 2.

Answer 4

Square root (1.44) = 1.2

Answer 5

+12 and -12.

Answer 6

The square roots of 144 are 12 and -12.

Answer 7

sqrt(144) = +12 or -12.

Answer 8

12

Answer 9

First, we can ask ourselves: what number do we square to get 144? When we square a number, we multiply it by itself. Example: 3 squared is 9, because 3x3=9. We can guess and check until we find a number that has a square of 144. 4 squared is 16, 5 squared is 25, 6 squared is 36... Aha! 12 squared is 12x12, which is 144! Therefore, the square root of 144 is 12.

P.S. -12 squared is also 144, which is -12x-12. If you are confused, lets rewrite it like this: -12x-12=(-1x12)x(-1x12). We can use the Associative Property to say: (-1x12)x(-1x12) = (-1x-1)x(12x12)= 1x144 = 144.