Across
- 3. symbol name of ″
- 5. it is two lines in the same plane that are at equal distance from each other and never meet
- 9. symbol name of °
- 10. it is a line that that intersect at a right angle
- 11. it is equal to 90°
- 12. π = 3.141592654... is the ratio between the circumference and diameter of a circle
- 13. it is formed by two rays
- 14. symbol name of |x-y|
Down
- 1. it is equivalence of geometric shapes and size
- 2. same shapes but not same size
- 4. symbol name of ′
- 6. symbol name of Δ
- 7. it is a line from point A to point B
- 8. symbol name of rad
- 11. it is a line that starts from point A