Related Clues:

• Circles, in part?
• Indirect paths
• Circular segments
• Rainbow sections
• Lobs' trajectories
• Orbit parts
• Three-point lines
• Circle lines
• Cuts into a pie, often
• Geometric sector boundaries
• Paths of pop-ups
• Rainbow-like shapes
• Lines in a circle
• Tennis lobs, e.g.
• They go straight in a circle