Given that is a square and , find .
Step 1: Find .
Since is a square, we know that . So, we can find by subtracting from .
Step 2: Find .
Since is a square, . is a diagonal that crosses through the square's opposite vertices, so bisects . Therefore, to find , we can divide by 2.
Step 3: Find .
The sum of a triangle's interior angle measures is , so we can find by subtracting the other 2 angle measures of from .