Across
- 2. The distance between. points X and Y.
- 5. The arc from point A to point B.
- 6. Angle. It is equal to 90°.
- 8. It is formed by two rays.
- 9. The ratio between the circumference and diameter of a circle.
- 10. The symbol is ′ (single prime).
- 13. The symbol is ⊥.
- 14. The symbol is ∥.
- 15. The line that starts from point A.
Down
- 1. The equivalence of geometric and size.
- 3. The symbol is ″ (double prime).
- 4. 1 turn is equal to 360°.
- 7. The example is ΔABC ≅ ΔBCD.
- 11. The infinite line.
- 12. The symbol is "rad.".