Across
- 2. ″
- 4. °
- 7. distance between points x and y
- 9. same shapes, not same size
- 10. ∠
- 11. ⊥
- 14. = 90°
- 15. π = 3.141592654...
Down
- 1. ≅
- 3. arcminute, 1° = 60′
- 5. rad
- 6. ∥
- 8. line from point A to point B
- 12. line that start from point A
- 13. infinite line