Related Clues:

• They meet at a center
• Pie chart lines
• Meteor paths
• Bow shapes
• Trajectories
• Trig calculations
• Lines on a pie chart, e.g.
• Circle spokes
• Chords define them
• Curving paths
• Indirect routes from point to point
• Lob trajectories
• Some lines in circles
• Arm stiffeners
• Circle components