The problem asks to identify two line segments that are parallel and two line segments that are perpendicular based on the given diagram.

1. Problem Description

The problem asks to identify two line segments that are parallel and two line segments that are perpendicular based on the given diagram.

2. Solution Steps

a) Parallel lines are lines that never intersect and maintain the same distance apart. From the given diagram, segments $WX$ and $TU$ appear to be parallel.

b) Perpendicular lines are lines that intersect at a right angle (90 degrees). From the given diagram, segments $QR$ and $YU$ appear to be perpendicular.

3. Final Answer

a) $WX$ and $TU$

b) $QR$ and $YU$