Find x and y.
Multiple choice answers are below

Answer:
x = 45°, y = 10.9√2
Step-by-step explanation:
The shape is a square. This means that the diagonal of a square will always bisect a corner angle. If the corner angle was originally 90°, this would make the new angles both 45°. The diagonal is 10.9√2 thanks to the rules of squares and 45° angles.