Related Clues:

• Angle producers
• Spokes, for example
• Spoke multiple times?
• Bicycle spokes, for instance
• Diameter sections
• Diameter halves
• Geometry calculations
• Armbones
• Spokes, e.g.
• Diameter fractions
• Hub projections
• They meet at a center
• Pie chart lines
• Trig calculations
• Lines on a pie chart, e.g.