Related Clues:
- Pie chart section, perhaps
- One-eighth of a circle
- Navigational instrument
- Measuring device
- Typical pizza slice
- Piece of pie, often
- Eighth part of a circle
- 45-degree circle section
- 45-degree wedge
- Pie slice, typically
- Eighth
- 45 degrees of a circle
- Device to measure angles to a celestial body
- It measures inclination of worker after 31 days
- Circle division