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