Question

Can some help me with the question below I don't know the answer

Answer 1

Answer:

y=4

Step-by-step explanation:

in a 45-45-90 triangle sides a and b are equal and the hypotenuse is $a\sqrt{2}$

so in this case y is a leg, so it is 4

in case there is a part two where they ask what x is, it would be $4\sqrt{2}$