Appeared in: 2025 (3 sets)
A woman discovered a scratch along a straight line on a circular table top of radius $8 \text{ cm}$. She divided the table top into 4 equal quadrants and discovered the scratch passing through the origin inclined at an angle $\frac{\pi}{4}$ anticlockwise along the positive direction of x-axis. Find the area of the region enclosed by the x-axis, the scratch and the circular table top in the first quadrant, using integration.