Answer:
d. x = 45°, y = 13.1√2
Explanation:
Due to it being a square, each corner is 90°. The angle bisector splits the square into two triangles. These triangles are 45° 45° 90° triangles.
Half of 90° is 45°, therefore x = 45°.
When you have a 45° 45° 90° triangle, the legs of the triangle will equal each other and the hypotenuse will be the side length multiplied by √2. Therefore, y = 13.1√2.