Need help pls
I’ll mark u brainliest

Answer:
under square root of 50 ([tex]\sqrt{50}[/tex])
Step-by-step explanation:
Use pythagorean theorem. a^2 + b^2 = c^2. 5^2 is one leg, the other leg is also 5^2, and the x is what we need. So 5^2 is 25. 25 + 25 is 50. Thus, x is (or under square root of 50), which is our answer!