Across
- 4. lines (90° angle)
- 7. same shapes, not same size
- 10. line that start from point A
- 11. ∥
- 13. double prime
- 14. infinite line
- 15. equivalence of geometric shapes and size
Down
- 1. formed by two rays
- 2. grads angle unit
- 3. arcminute, 1° = 60′
- 5. |x-y|
- 6. from point A to point B
- 7. triangle
- 8. shape
- 9. 1 turn = 360°
- 12. angle unit