Geometry

Question Analysis:
This question involves angle formation by diagonals inside a square.
The main focus is on the central angles created by diagonal intersection.

Key Concept Explanation:
In a square, diagonals intersect at 90°, and because the diagonals bisect each angle, each of the smaller angles at the center is 45°.

Step-by-Step Solution:
Diagonals bisect 90° angles
So: 90° ÷ 2 = 45°

Common Mistakes:...