Across
- 5. Nine sided polygon
- 7. Seven sided irregular polygon
- 8. Prism with six quadrilateral faces
- 12. Two circles at two ends
- 13. Constant cross-section
- 15. Football
- 16. Meet at right-angles
- 18. Regular triangular
- 19. Don't meet
- 22. Ice cream...........
Down
- 1. Has six straight sides
- 2. More than 90° but less than 180°
- 3. Closed plain shape, at least 3 sides
- 4. 2D representation of a 3D shape
- 6. Solid with flat polygon faces
- 8. Round
- 9. Splits in two identical halves
- 10. Four sided polygon
- 11. Four sides, the same length
- 14. Triangle with no equal lengths
- 17. Where three or more faces meet
- 20. Less than 90°
- 21. Where two faces meet