Answer:
The second oneis your answer.
The answer to that question is 3.160493827
it's 9 because 58-49=9
So the answer is 9
<h2>Hope this helps :></h2><h2 /><h2>From Cambridge</h2><h2 /><h2>Please give brainliest</h2>
Because if you multiply 2 different irrational numbers (like the following)

You will get an irrational answer.
BUT
if you multiply the same square root (which are both irrational, you get a rational number)