Across
- 4. arc from point A to point B
- 5. ≅
- 6. line from point A to point B
- 9. distance between points x and y
- 10. same shapes, not same size
- 12. line that start from point A
- 13. arcminute, 1° = 60′
- 14. rad
- 15. ∥
Down
- 1. grads angle unit
- 2. arcsecond, 1′ = 60″
- 3. formed by two rays
- 7. = 90°
- 8. infinite line
- 11. triangle shape