How do you find the square root of 80?

Question

25412 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-03-26T02:53:34

$80=4*20=4*4*5$

$sqrt80=sqrt4sqrt4sqrt5=2*2*sqrt5=4sqrt5$

(Or do you want a decimal approximation?)

Answer 2 · 2015-03-26T02:57:21

$80=2 * 2 * 2 * 2 * 5$

$80=16 * 5$

$sqrt (80)=sqrt (16) * sqrt (5)$

$sqrt (80)=4sqrt (5)$