Question

attached question, answerer(s) get medals!

Answer 1

19:9

Answer 2

Where is saifoo when you need him?

Answer 3

Ain't that the truth, chag?

Answer 4

Because these are areas we are dealing with, to get the ratio, we make a fraction then take the square root.
so we have:
\[\sqrt{\frac{361}{9}} = \frac{19}{9}\]

Answer 5

\[\sqrt{361\over 81}=\]=19/9