Across
- 2. Rule or statement accepted without proof (5)
- 4. Cereal box shape (6)
- 6. Longest side on triangle (10)
- 8. Three sides in this shape (8)
- 9. Greek guy who liked right angled triangles! (10)
- 12. Like a pushed over rectangle shape (13)
- 14. Sets of coordinate pairs going steady! (12)
- 16. Lines joined like a T shape (13)
- 18. Rubik's shape (4)
- 20. Maths dealing with shapes and angles (8)
Down
- 1. An x or a y on the line (10)
- 3. Rule or statement with proof (7)
- 5. Like a square but longer on two sides (9)
- 7. Used to measure angles (10)
- 10. Lines like train tracks (8)
- 11. Tin of beans shape (8)
- 13. The world is one of these! (6)
- 15. One half reflects the other (8)
- 17. Round shape (6)
- 19. Shape of ice cream? (4)