Across
- 3. infinite line
- 5. parallel lines
- 7. distance between
- 10. grads angle unit
- 12. arcminute,1°=60’
- 13. =90°
- 14. arcsecond,1’=60°
- 16. formed by two rays
Down
- 1. ~
- 2. perpendicular lines (90°angle)
- 4. triangle shape
- 6. x and y
- 8. grads angle unit
- 9. line from point A to point B
- 11. 1turn=360°
- 15. c