Across
- 2. |x-y|
- 3. infinite line
- 5. deg
- 6. formed by two rays
- 8. rad
- 12. line start from point A
- 13. ∆
- 14. =90°
Down
- 1. ||
- 3. line from point A to point B
- 4. 90° angle
- 7. same shapes, not same size
- 9. "
- 10. equevalence of geometric shape and size
- 11. '