Question

Whats the square root of 20

Answer 1

Answer:

The square root of 20 is 4.472135955

Answer 2

Answer:

$2\sqrt{5}$ or 4.472

Step-by-step explanation:

20 is not a perfect square, meaning that no two integers can be multiplied together to get 20. However, we can try to take perfect squares out of the square root.

$\sqrt{20}$ = $\sqrt{4*5}$ = $\sqrt{4} * \sqrt{5}$ = $2\sqrt{5}$

(Remember that the square root of 4 is 2.)