Across
- 2. – Lines that never meet
- 6. – Ratio of circumference to diameter
- 8. – Circle around a polygon
- 11. – Same shape, different size
- 13. – Two lines at 90°
- 14. – Sum of values
- 15. – Related by constant ratio
Down
- 1. – Distance from center to circle edge
- 3. – Formed by two rays
- 4. – No elements, null set
- 5. – Set of points equidistant from center
- 7. – Longest distance across a circle
- 9. – Same shape and size
- 10. – Four equal sides, right angles
- 12. – Three-sided polygon