If that is a square, then all sides are the same. Therefore, it's a $\sqrt{10}$ by $\sqrt{10}$ shape. We'll use Pythagorean Theorem to find the diagonal.

$a^2+b^2=c^2\\\sqrt{10}^2+ \sqrt{10}^2=x^2\\10+10=x^2\\20=x^2\\\sqrt{20}=x\\\sqrt{4*5}=x\\ 2\sqrt{5}=x$

Since it's not a fraction, there is no denominator to rationalize. Let me know if you have any other questions!

5 0

2 years ago

Need help asp pleaseeeeeeee

riadik2000 [5.3K]

Answer:

x=4

Step-by-step explanation:

You can use the app photo math, thats what I did you just take a pic of the problem and it shows you the steps and answer

7 0

2 years ago

Read 2 more answers

Can two angles share the same vertex but not be adjacent angles?

MAXImum [283]

Yes i believe they can have the same vertex

3 0

3 years ago

Read 2 more answers