Question

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

Answer 1

y=4

Explanation:

in a 45-45-90 triangle sides a and b are equal and the hypotenuse is
`a√(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√(2)`