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