A right I isosceles Triangle has an angle with measure of 45° if X represents the measure of the third angle angle of the triangle what is X

Question

I said c100 is that correct help

Answer 1

not likely, since one angle is 90 and the another is 45
right triangle, remember?

Answer 2

X = 180 - (90+45) =

Answer 3

lol heres the answer: 45°

Answer 4

Republic of china