Across
- 3. line from point A to point B
- 6. perpendicular lines (90° angle)
- 8. arc from point A to point B
- 9. same shapes, not same size
- 12. radians angle unit
- 13. line that start from point A
- 14. infinite line
- 15. 1 turn = 360°
Down
- 1. arcsecond, 1′ = 60″
- 2. parallel lines
- 4. = 3.141592654..
- 5. grads angle unit
- 7. arcminute, 1° = 60′
- 10. = 90°
- 11. formed by two rays