Last seen in:
Related Clues:
- Story progressions
- C shapes
- Tossed-ball trajectories
- They may be drawn with compasses
- They're half the diameter
- Geometric curves
- Trajectories, often
- Shadows on an equatorial sundial, say
- Halves of diameters
- r's, in math
- Tire tracks, often
- Curved trajectories
- They start in the middle
- Semi-diameters
- Parts of forearms