Across
- 4. °
- 6. same shapes, not same size
- 8. equivalence of geometric shapes and size
- 9. infinite line
- 10. ∟
- 11. ″
- 12. ∆
Down
- 1. is the ratio between the circumference and diameter of a circle
- 2. example AB ∥ CD
- 3. ⊥
- 4. |x-y|
- 5. '
- 7. ≅
- 10. example 360° = 2π rad