Question

PLEASE HELP I WILL MARK BRAINLIEST

Answer 1

What we need to do first is measure BC and CA.

As we can see BC measures 2, and CA measures 4.

So $2^{2}$ and $4^{2}$ give us 20.

And we square root that, and we get: $\sqrt{20}$.

So the answer is: $\sqrt{20}$.

Hope this helped! c:

Answer 2

The square root of 20? You'd use Pythagorean Theorem.