This is about special triangles and I don't understand I need help

in a 45-45-90 triangle, the sides are the same

you can find the third side using the pythagoran therum

but a and b are the same thing, so

if x is the side

so, like in problem 1

always make sure the hypotnus is longer than the legs

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.