Find the missing side length.
Please I need help, also need explanation.
Thank you!!

Answer:
x=2
y=√2
Step-by-step explanation:
You can tell from the angles that this is a 45, 45, 90 triangle. That would mean that the side given is x. Then the side "x" is x√2, and "y" is the same as x. So, that would mean the sides would be √2, √2, and 2.